TOOL
PRODUCTIVITY
Acres to Hectares
Convert acres to hectares as you type, both ways, with the exact 0.40468564224 factor, a swap button and a table of common land areas. Runs in your browser.
Library
AI tools, prompts, skills and tutorials
Browser tools that never upload your files, prompts you fill in and copy, skills for Claude and tutorials that walk you through it. New ones every week.
Nothing matches that search here. Search the whole library →
PROMPT
BUSINESS
Acronym Generator
Creates acronyms and backronyms for a project, team or program, puts pronounceable ones first and checks letter by letter that each one spells its expansion.
TOOL
SOCIAL MEDIA
Add Text to Image
Add text to an image in a bold font, pick the size and color, add an outline, and click where it goes. Save as PNG, JPG or WebP. It runs in your browser.
TOOL
PRODUCTIVITY
Age Calculator
Enter a date of birth to get the exact age in years, months and days, the total in months, weeks and days, the weekday of birth and the next birthday.
PROMPT
WRITING
Apology Letter
Writes a personal or professional apology letter that names what happened, owns it without excuses, shows the impact on them and says what will change.
TOOL
PRODUCTIVITY
BMI Calculator
Enter your height and weight in metric or US units to get your BMI, the WHO adult category and the healthy weight range for your height.
TOOL
PRODUCTIVITY
Binary Translator
Translate text to binary and binary back to text as you type, as UTF-8 bytes in 8-bit groups, so accents and emoji work. Nothing is uploaded.
PROMPT
SOCIAL MEDIA
Bio Generator
Writes your bio in one-liner, short and long versions, first or third person, for LinkedIn, Instagram, a website or a speaker intro, from your real background.
TOOL
PRODUCTIVITY
Blur Image
Blur an image, or only a face, a license plate or an address you select, with a strength slider. Save as PNG, JPG or WebP. It runs in your browser.
TOOL
PRODUCTIVITY
CM to Feet
Convert cm to feet as you type, both ways, with the exact 30.48 cm factor, a swap button and a table of common values. Handy for heights; runs in your browser.
TOOL
PRODUCTIVITY
CSV to JSON
Convert CSV to JSON as you type, with commas, semicolons or tabs detected, quoted fields handled and numbers kept as numbers. It runs in your browser.
TOOL
PRODUCTIVITY
Coin Flip
Flip one coin for heads or tails, or up to 1,000 coins at once with a count of each. Uses your browser's secure random generator, nothing sent.
TOOL
PRODUCTIVITY
Color Palette Generator
Generate a color palette from one color: shades, complementary, analogous, triadic, tetradic or monochrome, with HEX codes to copy. It runs in your browser.
TOOL
PRODUCTIVITY
Color Picker
Pick a color and get its HEX, RGB, HSL and CMYK, its contrast with white and black, and lighter and darker shades. It runs in your browser.
TOOL
PRODUCTIVITY
Countdown Timer
Count down from any time or a quick 25-minute block for focused work, with the time left in the tab title and three beeps at zero. Exact in the background.
TOOL
PRODUCTIVITY
Crop Image
Crop an image by dragging a selection, any shape or locked to 1:1, 4:3, 3:2, 16:9, 9:16 or 4:5, then save it as PNG, JPG or WebP. It runs in your browser.
TOOL
PRODUCTIVITY
Cups to ML
Convert US cups to ml as you type, both ways, with the exact 236.5882365 ml cup, tbsp and tsp in the list and a table of common amounts. Runs in your browser.
TOOL
PRODUCTIVITY
Date Calculator
Add or subtract days, weeks, months or years from a date and get the new date and its weekday, or count the days between two dates, in your browser.
TOOL
PRODUCTIVITY
Days Between Dates
Count the days between two dates: days, weeks and days, years, months and days, and weekdays, with an option to count the end date too. In your browser.
TOOL
PRODUCTIVITY
Delete Pages from PDF
Delete pages from a PDF by listing them, like 2, 5-7, and download a new PDF without them. It runs in your browser, so your file is never uploaded.
TOOL
PRODUCTIVITY
Dice Roller
Roll up to 100 dice at once, d4, d6, d8, d10, d12, d20 or d100, and see each roll and the total. Uses your browser's secure random generator.
TOOL
PRODUCTIVITY
Diff Checker
Check the diff between two versions of code, config or logs line by line, with line numbers and added and removed counts. It runs in your browser.
SKILL
PRODUCTIVITY
Email Writer
A skill for Claude that writes any work or personal email from a few notes or a thread: subject line, the right tone, one clear ask and a shorter version.
TOOL
PRODUCTIVITY
Fahrenheit to Celsius
Convert Fahrenheit to Celsius as you type, both ways, with the formula on screen, Kelvin too and a table from -40 to 100. Runs in your browser.
PROMPT
WRITING
Farewell Message
Writes farewell messages for a coworker, a boss, a team or your own exit, as a card note, an email or a short speech, in a warm, funny or formal tone.
TOOL
PRODUCTIVITY
Feet to CM
Convert feet to cm as you type, both ways, with the exact 1 ft = 30.48 cm factor, a swap button and a table of common values. Runs in your browser.
TOOL
PRODUCTIVITY
Feet to Meters
Convert feet to meters as you type, both ways, with the exact 1 ft = 0.3048 m factor, a swap button and a table of common lengths. Runs in your browser.
TOOL
PRODUCTIVITY
Flip Image
Flip an image upside down, or mirror it left to right, in one click at full resolution, then save it as PNG, JPG or WebP. It runs in your browser.
TOOL
PRODUCTIVITY
GPA Calculator
Enter a letter grade and credits for each course to get your GPA on the 4.0 scale, weighted by credits, with your total credits and grade points.
TOOL
PRODUCTIVITY
Gallons to Liters
Convert US gallons to liters as you type, both ways, with the exact 3.785411784 factor, the UK gallon in the list and a table of common volumes.
SKILL
WRITING
Grammar Checker
A skill for Claude that proofreads your text for grammar, spelling and punctuation, keeps your voice and lists every change with a short reason.
TOOL
PRODUCTIVITY
Grams to Oz
Convert grams to ounces as you type, both ways, with the exact 28.349523125 g factor, a swap button and a table of common weights. Runs in your browser.
TOOL
PRODUCTIVITY
Grayscale Image
Turn an image black and white, all of it or only an area you select, at full resolution, then save it as PNG, JPG or WebP. It runs in your browser.
TOOL
PRODUCTIVITY
HEX Color Picker
Pick a color and copy its HEX code, or paste a HEX code to get RGB, HSL, CMYK, contrast ratios and shades. It runs in your browser, nothing uploaded.
PROMPT
SOCIAL MEDIA
Hashtag Generator
Writes hashtags for one post per platform (Instagram, TikTok, LinkedIn, X), mixing broad, niche and specific tags in the number you choose.
TOOL
PRODUCTIVITY
Image Color Picker
Pick colors from an image: click any pixel for its HEX, RGB and HSL, and see the 6 main colors of the picture. It runs in your browser, nothing uploaded.
TOOL
PRODUCTIVITY
Image Cropper
An image cropper with ratio presets (1:1, 4:3, 3:2, 16:9, 9:16, 4:5) or free selection, full resolution up to 8000 px, and undo. Runs in your browser.
TOOL
PRODUCTIVITY
Image to Text
Extract text from screenshots, photos and scans with OCR, then edit, copy or download it as .txt. It runs in your browser, so your images are never uploaded.
TOOL
PRODUCTIVITY
Inches to CM
Convert inches to cm as you type, both ways, with the exact 1 in = 2.54 cm factor, a swap button and a table of common values. Runs in your browser.
TOOL
PRODUCTIVITY
Inches to MM
Convert inches to mm as you type, both ways, with the exact 25.4 factor, a swap button and a table of common values. It runs in your browser, nothing sent.
PROMPT
SOCIAL MEDIA
Instagram Caption Generator
Writes Instagram captions from your photo, voice and goal, with a hook first line, a short body, a question or CTA and a few hashtags, in three lengths.
PROMPT
BUSINESS
Interview Questions
Predicts the interview questions for your role and level, explains what each one tests, outlines answers from your real experience and adds questions to ask.
TOOL
PRODUCTIVITY
Invert Colors
Invert colors in an image, all of it or only an area you select, to make a negative or flip a light screenshot to dark. Save as PNG, JPG or WebP.
TOOL
PRODUCTIVITY
JSON to CSV
Convert JSON to CSV as you type, with nested objects as dotted columns and proper quoting for commas and line breaks. It runs in your browser, nothing uploaded.
TOOL
PRODUCTIVITY
KM to Miles
Convert km to miles as you type, both ways, with the exact 1.609344 factor, a swap button and a table of common distances. Runs in your browser.
TOOL
PRODUCTIVITY
KM/H to MPH
Convert km/h to mph as you type, both ways, with the exact 1.609344 factor, m/s and knots in the list and a table of common speeds. Runs in your browser.
TOOL
PRODUCTIVITY
Lbs to Kg
Convert lbs to kg as you type, both ways, using the exact 0.45359237 factor, with a swap button and a table of common weights. Runs in your browser.
TOOL
PRODUCTIVITY
Liters to Gallons
Convert liters to US gallons as you type, both ways, with the exact 3.785411784 factor, the UK gallon in the list and a table of common volumes.
TOOL
BUSINESS
Loan Calculator
Enter the loan amount, annual interest rate and term in years to get the monthly payment, the number of payments, the total interest and the total paid.
TOOL
PRODUCTIVITY
ML to Oz
Convert ml to US fluid ounces as you type, both ways, with the exact 29.5735 ml factor, a swap button and a table of common volumes. Runs in your browser.
TOOL
PRODUCTIVITY
MM to Inches
Convert mm to inches as you type, both ways, with the exact 25.4 factor, a swap button and a table of common sizes. It runs in your browser, nothing sent.
TOOL
PRODUCTIVITY
MPH to KM/H
Convert mph to km/h as you type, both ways, with the exact 1 mph = 1.609344 km/h factor, m/s and knots in the list and a table of common speeds.
SKILL
MARKETING
Marketing Plan Writer
A skill for Claude that writes a 90-day marketing plan from your product, buyer, budget and numbers: goals, channels, a weekly calendar, budget and metrics.
TOOL
SOCIAL MEDIA
Meme Generator
Make a meme from your own image or a plain background, with classic white outlined top and bottom text, then download it as a PNG. It runs in your browser.
TOOL
PRODUCTIVITY
Meters to Feet
Convert meters to feet as you type, both ways, with the exact 0.3048 factor, a swap button and a table of common lengths. Runs in your browser.
TOOL
PRODUCTIVITY
Mic Test
Test your microphone in the browser with a live level in dB, the loudest level, and a 5-second recording to play back. Nothing is saved or sent.
TOOL
PRODUCTIVITY
Miles to KM
Convert miles to km as you type, both ways, with the exact 1 mi = 1.609344 km factor, a swap button and a table of common distances. Runs in your browser.
TOOL
PRODUCTIVITY
Mirror Image
Mirror an image left to right in one click, fix a reversed selfie or point a photo the other way, then save as PNG, JPG or WebP. Runs in your browser.
TOOL
PRODUCTIVITY
Morse Code Translator
Translate text to Morse code and Morse back to text as you type, with letters, digits and punctuation. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
Oz to Grams
Convert oz to grams as you type, both ways, with the exact 1 oz = 28.349523125 g factor, a swap button and a table of common weights. Runs in your browser.
TOOL
PRODUCTIVITY
Oz to ML
Convert US fluid oz to ml as you type, both ways, with the exact 29.5735295625 factor, a swap button and a table of common sizes. Runs in your browser.
TOOL
PRODUCTIVITY
PDF to Text
Extract the text from every page of a PDF, with page markers if you want them, then copy it or download a .txt file. It runs in your browser, nothing uploaded.
TOOL
PRODUCTIVITY
PDF to Word
Turn a PDF into an editable Word .docx with the text paragraph by paragraph and a page break per page. It runs in your browser, so the PDF is never uploaded.
SKILL
BUSINESS
PRD Writer
A skill for Claude that writes a product requirements document from an idea or notes: problem, users, goals, metrics, prioritized requirements and edge cases.
TOOL
PRODUCTIVITY
Percentage Calculator
Work out X% of Y, what percent one number is of another, or the percentage change between two numbers. Results update as you type, in your browser.
SKILL
BUSINESS
Performance Review Writer
A skill for Claude that writes manager reviews and self evaluations from your notes: strengths, impact with evidence, fair growth areas and next goals.
TOOL
PRODUCTIVITY
Pixelate Image
Pixelate an image, or only a face, a name or a plate you select, with a slider for block size. Save as PNG, JPG or WebP. It runs in your browser.
PROMPT
MARKETING
Podcast Name Generator
Writes podcast name ideas from your topic, audience, host and tone, grouped by style, with taglines for the top picks and a checklist before you commit.
PROMPT
WRITING
Poem Generator
Writes a poem on your topic in the form you choose, from haiku and sonnet to limerick or free verse, keeping the meter and rhyme, then offers a revision.
SKILL
MARKETING
Press Release Writer
A skill for Claude that writes an AP-style press release from your facts: headline, dateline, lede, body, approved quotes, boilerplate and media contact.
TOOL
PRODUCTIVITY
Random Name Picker
Paste up to 200 names, one per line, and spin to pick one at random for a class, a team or a giveaway. Remove each winner to draw the next fairly.
TOOL
PRODUCTIVITY
Random Number Generator
Pick random numbers between a minimum and a maximum, up to 1,000 at once, with or without repeats. Uses your browser's secure random generator.
TOOL
PRODUCTIVITY
Regex Tester
Test JavaScript regular expressions live, with highlighted matches, numbered and named groups, flags and replace. It runs in your browser, nothing uploaded.
TOOL
WRITING
Reverse Text
Reverse text by letters, by word order or by line order, with emoji and accented letters kept whole. It runs in your browser, so nothing is uploaded.
PROMPT
WRITING
Rhyme Generator
Finds rhymes for any word, perfect, near and multisyllabic, grouped by syllable count, and fits them into a lyric or poem line you give, with accent notes.
TOOL
PRODUCTIVITY
Roman Numerals Converter
Convert numbers from 1 to 3999 to Roman numerals and back, one per line, with invalid numerals like IIII caught and corrected. It runs in your browser.
TOOL
PRODUCTIVITY
Rotate Image
Rotate an image 90° left or right, or 180° in two clicks, to fix sideways phone photos and scans, then save as PNG, JPG or WebP. Runs in your browser.
TOOL
PRODUCTIVITY
Rotate PDF
Rotate PDF pages 90° clockwise, 180° or 90° counterclockwise, all of them or only the pages you list, into one new PDF. Nothing is uploaded.
TOOL
PRODUCTIVITY
SHA256 Hash Generator
Generate a SHA-256 hash of any text as you type, plus SHA-1, SHA-384 and SHA-512, in hex with an uppercase option. It runs in your browser.
PROMPT
PRODUCTIVITY
SMART Goals
Turns a vague goal into SMART goals that are specific, measurable, achievable, relevant and time-bound, with milestones and a first step for this week.
TOOL
PRODUCTIVITY
Screen Recorder
Record your screen, a window or a tab with your microphone and tab sound, pause when you need to, and download MP4 or WebM. It runs in your desktop browser.
PROMPT
WRITING
Sentence Rewriter
Rewrites a sentence or paragraph in five versions, shorter, clearer, formal, friendly and simpler, keeping your meaning and explaining every change.
PROMPT
MARKETING
Slogan Generator
Writes short slogans and taglines for your brand or product, grouped by angle, flags the generic ones and reminds you to check trademarks before you use one.
TOOL
PRODUCTIVITY
Split PDF
Split a PDF into one file per page, one file per page range, or pull chosen pages into one new file. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
Square Feet to Square Meters
Convert square feet to square meters as you type, both ways, with the exact 0.09290304 factor, a swap button and a table of common floor areas.
TOOL
PRODUCTIVITY
Stopwatch
An online stopwatch with laps, in hundredths of a second. Start, stop, record lap and total times, and copy the laps in one click. Timer tab included.
PROMPT
WRITING
Story Generator
Writes a short story from your idea with the genre, length, audience and point of view you pick, with a title, clear scenes, a real ending and sequel ideas.
TOOL
WRITING
Text Compare
Compare two texts line by line as you type, with added lines highlighted, removed lines struck through and line numbers. It runs in your browser.
TOOL
PRODUCTIVITY
Text to Speech
Hear any text read aloud with the voices on your device, with speed from 0.5x to 2x, pitch, pause and stop. It runs in your browser and makes no audio file.
PROMPT
WRITING
Thesis Statement Generator
Helps sharpen your thesis statement from your topic, essay type, position and reasons: several options, why each works, a stronger revision and an outline.
TOOL
PRODUCTIVITY
Timer
Set hours, minutes and seconds or tap a quick button, start the timer and hear three beeps at zero. Stays exact in a background tab. Stopwatch included.
TOOL
PRODUCTIVITY
Tip Calculator
Enter the bill, the tip percentage and how many people are paying to get the tip, the total and each person's share, rounded to cents.
PROMPT
SOCIAL MEDIA
Username Generator
Generates usernames from your interests, name and vibe, fitted to each platform's length and character rules, with variations to try if one is taken.
TOOL
PRODUCTIVITY
Webcam Test
Test your webcam in the browser with a live preview, the resolution and frame rate it reports, a mirror switch and a photo to download as PNG.
PROMPT
WRITING
Wedding Speech
Writes a wedding speech for your role, best man to parent, from your real stories, timed to the minutes you have, with a toast and delivery notes.
TOOL
PRODUCTIVITY
Wheel Spinner
Type up to 200 options, one per line, and spin the wheel to pick one. The winner is drawn with secure random, and you can remove it after each spin.
TOOL
PRODUCTIVITY
Word to PDF
Turn a Word .docx into a PDF: preview the pages, then save them through your browser's print window. It runs in your browser, so the file is never uploaded.
PROMPT
SOCIAL MEDIA
A Week of Threads Posts From One Idea
Turns one idea into seven Threads posts in seven shapes, each under 500 characters, so you post every day of the week without repeating yourself.
SKILL
CLAUDE
AI Code Review
A skill for Claude that reviews a diff or pull request like a senior engineer: real bugs first, each with the line, why it breaks and a fix.
PROMPT
PRODUCTIVITY
AI Prompt Generator
Turns a rough request into a complete prompt for ChatGPT or Claude, with role, context, steps, format and checks, asking only questions that matter.
TOOL
PRODUCTIVITY
AVIF to JPG Converter
Convert AVIF to JPG in your browser so images open in any app, email or form, several at once. Your files stay on your device and are never uploaded.
TOOL
PRODUCTIVITY
AVIF to PNG Converter
Convert AVIF to PNG in your browser with transparency kept and lossless output, several files at once. Your images are never uploaded or stored.
TOOL
PRODUCTIVITY
Base64 Decode
Decode Base64 to readable UTF-8 text as you paste, standard or URL-safe, spaces and line breaks included. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
Base64 Encode
Encode text to Base64 as you type, UTF-8 safe, with a URL-safe option that uses - and _ without padding. It runs in your browser, so nothing is uploaded.
SKILL
BUSINESS
Business Plan Writer
A skill for Claude that interviews you, then writes a lean business plan: market, go-to-market, unit economics and a 12-month table from your own numbers.
TEMPLATE
CLAUDE
CLAUDE.md Starter for Any Project
A complete CLAUDE.md for any project: house rules, stack, unit testing rules, git and safety limits, and a finish line Claude checks before it says done.
TOOL
PRODUCTIVITY
Calculator
A calculator for whole expressions, with percent, powers, square roots and pi. The result shows as you type, and nothing is sent anywhere.
TOOL
PRODUCTIVITY
Case Converter
Change text to Title Case, Sentence case, UPPERCASE, lowercase, camelCase, snake_case and more as you type. It runs in your browser: nothing is uploaded.
PROMPT
BUSINESS
Cold Email Writer
Writes a short cold email and two follow-ups for one prospect, built on a real reason to write, one clear ask and no hype, with subject lines under 50.
TOOL
PRODUCTIVITY
Compress Image
Compress images with a quality slider, max width and JPG or WebP output, several at once. It runs in your browser, so the files stay on your device.
TOOL
PRODUCTIVITY
Compress Video
Compress a video to a smaller MP4, with a size level, max resolution and an option to drop audio. It runs in your browser; files stay on your device.
SKILL
CLAUDE
Conventional Commits Writer
A skill for Claude that reads your staged changes and writes Conventional Commits messages: the right type and scope, a clear subject, a body that says why.
PROMPT
BUSINESS
Cover Letter Generator
Writes a one-page cover letter tailored to one job posting from your real experience, with a company hook, matched proof and a short email version.
PROMPT
BUSINESS
Elevator Pitch
Writes your elevator pitch in 10, 30 and 60-second versions for investors, clients, networking or a job search, plus one line people remember.
TUTORIAL
SEO
Find Blog Topics People Actually Search For
A 30-minute routine to go from a niche to a list of ten blog topics with real search demand, grouped in one cluster, using free tools and one prompt.
SKILL
PRODUCTIVITY
Flashcard Maker
A skill for Claude that turns notes, chapters or PDFs into clear flashcards, one fact per card, with an Anki import file, a Quizlet list and a quick quiz.
TOOL
PRODUCTIVITY
HEIC to JPG Converter
Convert HEIC to JPG from your iPhone, several photos at once, in Chrome, Edge, Firefox or Safari. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
HEIC to PNG Converter
Convert HEIC to PNG with no compression loss, several iPhone photos at once, in any modern browser. Your photos stay on your device and are never uploaded.
TUTORIAL
CLAUDE
How to Install Claude Code
Install Claude Code on Mac, Windows or Linux in five minutes, sign in, check it works and run your first task in a real project, with fixes for common errors.
SKILL
WRITING
Humanize AI Text
A skill for Claude that rewrites AI-sounding drafts into plain, specific, human prose: it strips the tells, keeps your facts and shows what changed.
TOOL
PRODUCTIVITY
Image Converter
Image converter to JPG, PNG or WebP (AVIF when your browser supports it), several files at once. It runs in your browser; your files stay on your device.
PROMPT
MARKETING
Image Prompt Generator
Writes detailed prompts for AI image models from a simple idea: subject, composition, light, lens, style and text rules, in three directions you can pick from.
TOOL
PRODUCTIVITY
Image Resizer
Resize images by width, height, percent or exact size, several at once, and save as JPG, PNG or WebP. It runs in your browser; nothing is uploaded.
TOOL
PRODUCTIVITY
Image to PDF Converter
Convert any image to PDF: JPG, PNG, WebP, HEIC or AVIF, one page each, sized to the image, A4 or US Letter. It runs in your browser, with no upload.
SKILL
SOCIAL MEDIA
Instagram Carousel Writer
A skill for Claude that writes swipeable Instagram carousels of 3 to 10 slides, educational or sales, with a cover that earns the swipe and visual notes.
TUTORIAL
CLAUDE
Install a Skill in Claude
How to add a downloaded skill to Claude in under two minutes, check that it loaded, and ask for work that makes Claude use it.
TOOL
PRODUCTIVITY
JPG to PDF Converter
Convert JPG to PDF, one page per photo in your order, sized to the image, A4 or US Letter. It runs in your browser, so nothing is uploaded or stored.
TOOL
PRODUCTIVITY
JPG to PNG Converter
Convert JPG to PNG in your browser with lossless output, several images at once, for editing, design tools and uploads. Nothing is uploaded.
TOOL
PRODUCTIVITY
JPG to WebP Converter
Convert JPG to WebP in your browser for lighter photos and faster pages, several images at once. Your photos stay on your device, never uploaded.
TOOL
PRODUCTIVITY
JSON Formatter
Format, beautify and minify JSON, with 2 or 4 spaces or tabs and sort keys. It runs in your browser, so your text stays on your device, never uploaded.
TOOL
PRODUCTIVITY
JSON Validator
Check JSON as you type and see the exact line and column of any error, with a jump to the spot. It runs in your browser, and nothing is uploaded.
TOOL
PRODUCTIVITY
JWT Decoder
Decode a JWT into its header and payload as JSON, with iat, nbf and exp as dates and an expiry check. It runs in your browser, so the token stays put.
TOOL
MARKETING
Keyword Volume Checker
Check monthly Google searches, cost per click and competition for up to 100 keywords at once, with the last 12 months, and download it all as CSV.
TOOL
PRODUCTIVITY
M4A to MP3 Converter
Convert M4A to MP3 from iPhone Voice Memos or iTunes so it plays on any device, at 128, 192 or 320 kbps. It runs in your browser; nothing is uploaded.
TOOL
PRODUCTIVITY
MKV to MP4 Converter
Convert MKV to MP4 so OBS recordings and downloads play on phones, TVs and editors. It runs in your browser; the file is never uploaded or stored.
TOOL
PRODUCTIVITY
MOV to GIF Converter
Convert MOV to GIF from an iPhone video or a Mac screen recording, up to 20 seconds, 8 to 15 fps. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
MOV to MP4 Converter
Convert MOV to MP4 from an iPhone or QuickTime, often with no quality loss. It runs in your browser, so the video is never uploaded or stored.
TOOL
PRODUCTIVITY
MP4 to GIF Converter
Convert MP4 to GIF in your browser: pick the start, up to 20 seconds, 8 to 15 fps and a width up to 800 px. The video is never uploaded or stored.
TOOL
PRODUCTIVITY
MP4 to MP3 Converter
Convert MP4 to MP3 and keep only the sound of a video, at 128, 192 or 320 kbps. It runs in your browser, so the video is never uploaded or stored.
TOOL
PRODUCTIVITY
MP4 to WebM Converter
Convert MP4 to WebM for web pages and HTML5 video, re-encoded right in your browser. Your video is never uploaded or stored, and it spends no credits.
SKILL
PRODUCTIVITY
Meeting Minutes
A skill for Claude that turns a transcript or rough notes into meeting minutes: decisions, action items with owners, open questions and a Slack recap.
TOOL
PRODUCTIVITY
Notes
Markdown notes that format as you type, link with [[ and save on their own. Find any note from the search bar, wherever you sign in to Nexin.
PROMPT
PRODUCTIVITY
Out of Office Message
Writes internal and external out of office messages in formal, friendly and short versions, plus a holiday reply, with clear dates and a backup contact.
TOOL
PRODUCTIVITY
PDF to JPG Converter
Convert PDF to JPG, every page as its own image at 72, 144 or 216 dpi, with Download all. It runs in your browser, so the PDF is never uploaded.
TOOL
PRODUCTIVITY
PDF to PNG Converter
Convert PDF to PNG, every page as a lossless image at 72, 144 or 216 dpi, ready for slides, docs and design tools. It runs in your browser, no upload.
TOOL
PRODUCTIVITY
PNG to JPG Converter
Convert PNG to JPG in your browser for lighter photos and screenshots, several at once. Transparent areas turn white. Nothing is ever uploaded.
TOOL
PRODUCTIVITY
PNG to PDF Converter
Convert PNG to PDF, one page per screenshot or graphic, sized to the image, A4 or US Letter, with an optional margin. It runs in your browser, no upload.
TOOL
PRODUCTIVITY
PNG to WebP Converter
Convert PNG to WebP in your browser for smaller images with transparency kept, several at once, ready for your website. Nothing is ever uploaded.
PROMPT
BUSINESS
Resignation Letter
Writes a resignation letter in a formal and a warm version, with your last day, an offer to help with the handover and a two-line email to send it.
SKILL
BUSINESS
SOP Writer
A skill for Claude that writes standard operating procedures from notes or a recording: numbered steps, expected results, checks and troubleshooting.
PROMPT
BUSINESS
STAR Method Interview Answers
Turns your raw work stories into STAR method interview answers of 60 to 90 seconds, with honest results and the follow-up questions to expect.
TOOL
PRODUCTIVITY
SVG to PNG Converter
Convert SVG to PNG in your browser at 1x, 2x or 4x size, with transparency kept and several files at once. Your SVG files are never uploaded.
PROMPT
BUSINESS
SWOT Analysis
Builds a SWOT analysis for your business or product with internal and external factors kept apart, then TOWS strategies and three clear priorities.
TOOL
PRODUCTIVITY
Screenshot
Take a screenshot of a screen, window or tab, crop it, then copy it or download a PNG. It runs in your browser, so nothing is uploaded or stored.
TOOL
MARKETING
Social Profile Scraper
Pull any public Instagram, TikTok, YouTube, X or Threads profile with its latest posts, engagement rate, best posts and how often it posts.
SKILL
PRODUCTIVITY
Summarizer
A skill for Claude that summarizes long text, PDFs, transcripts and threads at the length you pick, with exact numbers, located quotes and gaps flagged.
PROMPT
BUSINESS
Thank You Email After Interview
Writes a thank you email after an interview, under 150 words with one specific detail, plus a panel version and a polite follow-up for a week later.
TOOL
PRODUCTIVITY
URL Decoder
Decode percent-encoded URLs and query strings into readable text as you paste, with + read as a space. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
URL Encode
Percent-encode a query value or a whole URL as you type, with a Whole URL option that keeps the separators. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
UUID Generator
Generate random version 4 UUIDs, from 1 to 500 at a time, lowercase or uppercase, with your browser's secure random generator. Nothing is uploaded.
PROMPT
MARKETING
Unique Selling Proposition
Writes five unique selling proposition options from different angles, each with a headline version, and picks the strongest one backed by your proof.
TOOL
PRODUCTIVITY
Unix Timestamp Converter
Convert a Unix timestamp to a date, or a date to epoch time, in seconds and milliseconds, UTC and your own time zone. It runs in your browser.
SKILL
BUSINESS
User Story Writer
A skill for Claude that turns a feature idea or PRD into INVEST user stories with Given/When/Then acceptance criteria, edge cases and a priority order.
TOOL
PRODUCTIVITY
Video Converter
Video converter to MP4, WebM, MOV or MKV, or audio as M4A. It runs in your browser, so your files stay on your device. No upload, nothing stored.
TOOL
PRODUCTIVITY
Video to GIF Maker
Turn a video into a GIF up to 20 seconds long, with your start point, frame rate and width. It runs in your browser, so the video is never uploaded.
TOOL
PRODUCTIVITY
Video to MP3 Converter
Convert a video to MP3 from MP4, MOV, WebM or MKV and keep only the audio, at up to 320 kbps. It runs in your browser, so nothing is uploaded.
TOOL
PRODUCTIVITY
WAV to MP3 Converter
Convert WAV to MP3 and shrink big recordings from recorders or a DAW, at 128, 192 or 320 kbps. It runs in your browser; nothing is uploaded or stored.
TOOL
PRODUCTIVITY
WebM to MP4 Converter
Convert WebM to MP4 so screen recordings and browser clips open in any app or editor. It runs in your browser; the video is never uploaded or stored.
TOOL
PRODUCTIVITY
WebP to JPG Converter
Convert WebP to JPG in your browser, several images at once, ready for forms, email and older apps. Your files stay on your device, never uploaded.
TOOL
PRODUCTIVITY
WebP to PNG Converter
Convert WebP to PNG in your browser, several files at once, with transparency kept and lossless output. Your images are never uploaded anywhere.
TOOL
PRODUCTIVITY
YAML Formatter (YML Formatter)
Format and beautify YAML and .yml files, with comments kept, 2 or 4 spaces and sort keys. It runs in your browser, so your text stays private.
TOOL
PRODUCTIVITY
YAML Validator (YAML Lint)
Check YAML and .yml files as you type, with errors by line and column and a jump to the spot. A YAML lint that runs in your browser, nothing uploaded.
TOOL
PRODUCTIVITY
YAML to JSON Converter
Convert YAML or .yml to JSON, or JSON back to YAML, as you type, with errors by line and column. It runs in your browser, so nothing is uploaded.
PROMPT
SOCIAL MEDIA
YouTube Title Generator
Writes 10 YouTube title options for one video in five proven shapes, each under 60 characters, plus thumbnail text that adds to the title.