Small, sharp tools that do one thing well.
Sourwood Labs builds focused browser extensions and developer utilities — the kind that solve a real, specific problem, respect your privacy, and stay out of your way. No bloat, no accounts, no tracking your browsing.
Random Name Picker
Add names, spin an animated wheel, and get a fair random winner — great for classrooms, standups, and raffles.
Unicode Inspector
See every character's code point, spot invisible and zero-width characters, and strip them from pasted text.
Meta Tag & Open Graph Generator
Fill a short form and get a complete meta, Open Graph, and Twitter-card block ready to paste into your <head>.
Data Format Converter
Convert JSON, CSV, YAML, and TSV — paste text or drop a file, preview it as a table, then copy or download.
Add to Calendar Link Generator
Turn one event form into a valid .ics file and ready-to-share add-to-calendar links, entirely in your browser.
Speed Reader
Flash pasted text one word at a time with RSVP focus highlighting, and read hundreds of words per minute.
SQL Formatter
Paste any SQL and get clean, consistently indented, keyword-cased formatting in an instant — entirely offline.
Table to Markdown
Paste any table and get clean Markdown or CSV — and turn a Markdown table back into one, all in your browser.
SERP Snippet Preview
See how your title and meta description render in Google search, and catch likely truncation before you publish.
Readability Checker
Grade level, reading ease, and hard-sentence and adverb highlights for any draft you paste in.
PDF Merge & Split
Merge, reorder, split, rotate, and extract PDF pages entirely offline. Your PDFs never leave your browser.
Image Compressor
Compress, resize, and convert JPG, PNG, and WebP images right in your browser — nothing is uploaded.
Word Counter
Word count, character count, reading time, and platform limits, the moment you paste your text.
JSON Formatter
Paste any JSON and get it formatted, validated, and error-located in an instant — entirely offline.
Text Cleaner
Fix case, join stray line breaks, and straighten smart quotes in text you paste, then copy it back out.
Timestamp Converter
Convert Unix epochs to human dates and back, with the unit auto-detected and nanosecond-exact precision.
Color Picker
Pick any color on screen with the browser's native eyedropper — hex, RGB, and HSL in a tap.
Fake Data Generator
Generate realistic, obviously-fake test data — names, emails, UUIDs, addresses — straight to your clipboard.
Compare Text
Paste two texts and see exactly what changed — a word- or line-level diff, side-by-side or inline.
UTM Builder
Tag any URL with UTM campaign parameters and copy a clean, correctly-encoded link.
WebSong
Turns the address of the page you're on into a short, repeatable melody — play it or download it as a .mid file.
Curl to Code
Paste a curl command and get working Python, JavaScript, or Node code back — your tokens never leave the browser.
JSON Diff
Compare two JSON documents by key path — additions, removals, changes, and type flips, entirely on-device.
Tidy Your Lists
Paste a list and dedupe, sort naturally, number, reverse, and trim the lines, all in one popup.
Hash & Checksum
Generate SHA-256, MD5, SHA-1/384/512, and CRC32 hashes for text or a file, then verify a checksum.
Regex Tester
Test regex patterns with live match highlighting and capture groups, running safely in a sandboxed worker.
Markdown to HTML
Paste Markdown and see a sanitized live preview side by side, then copy or download safe HTML.
JSON to Types
Paste JSON and get real TypeScript or Go type declarations back — five more languages with premium.
Encode & Decode
Encode or decode Base64 and URL-encoded text locally; premium adds HTML entities, JWT decode, and more.
Text Extractor
Pull emails and URLs out of pasted text, deduped and copyable; premium adds phone numbers and IPs.
Every Sourwood Labs product is a self-contained tool with a single clear job. We charge a fair one-time price for the advanced features and keep the essentials free — and our first tools are live now on the Chrome Web Store.
Chrome & Edge tools
Lightweight extensions for developers, writers, and everyday power users — formatters, converters, and cleaners that work instantly, offline, in a click.
Workflow utilities
Focused command-line and integration tools that automate the tedious parts of building software, published open-source where it helps the community.
One-time, fair pricing
Buy once, own it. Premium features unlock with a single purchase — no subscriptions you'll forget to cancel, no ads, no data harvesting.
Privacy by default
Our extensions request the narrowest permissions possible and never collect your page content or browsing history. What happens in your browser stays there.
No dark patterns
Clear one-time pricing, honest free tiers, and an obvious way to reach a human. No manipulative upsells, no buried cancel buttons.
Small & fast
Every tool loads instantly and works offline. We'd rather ship one thing that's excellent than ten things that are mediocre.