1 live · 9 in progress
Tools that do
one job well.
Formatters, generators and converters for developers, freelancers and small businesses. No account, no upload, no cookie banner — every tool runs in your own browser, so whatever you paste stays on your machine.
Newest tool
JSON Formatter & Validator
Format, validate and minify JSON online. Get the exact line and column of any syntax error. Free, no signup, and your data never leaves your browser.
Open itBrowse by category
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Code & data
Format, validate and clean up the things you paste all day.
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Generators
Passwords, IDs, QR codes, placeholder content.
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Converters
Encode, decode and move between formats.
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Business & documents
Invoices, quotes and paperwork without a subscription.
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Web & SEO
Small utilities for shipping and ranking websites.
Why these and not the other ten thousand tool sites
Nothing leaves your browser
Every tool here is client-side JavaScript. There is no upload step and no server to log anything, which is what you want when the file you are debugging belongs to a client.
Fast on purpose
Static pages, no framework runtime, no tracking pixels stacked five deep. Pages load and the tool works — including on a phone on mobile data.
Built to be used, not just found
Keyboard shortcuts, real error messages that tell you the line and column, and no modal asking for your email before you can see the output.