toolspace
Free, open source developer tools that run in your browser: diff checker, JSON diff, formatter…
FreeOpen SourceCodeHelpers6 impressionslaunches Oct 141 comment
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>log in to commentEver needed quick, offline utilities without juggling multiple sites or worrying about data leaks? I built toolspace, a free, open‑source suite that runs entirely in your browser – diff checker, JSON tools, encoders, QR generator, and more, with no sign‑up or uploads. It’s all in one place, MIT licensed. I'd love your thoughts on the experience 😊
Toolspace offers free, open-source browser-based developer utilities like diff checker, JSON formatter, encoder, QR code generator and more.
- for
- Developers who need quick, offline tools without sign-up or data upload.
- pricing
- free
Key features
- Diff checker — Compare two texts or files line-by-line and word-by-word in the browser.
- JSON formatter & diff — Beautify, minify or diff JSON files with optional key sorting.
- Base64 encoder/decoder — Encode and decode Base64 text and files directly in the tab.
- QR code generator — Create QR codes for links, Wi-Fi or plain text as PNG or SVG.
- Word counter — Count words, characters, sentences and estimate reading time.
- Password generator — Generate strong random passwords locally in the browser.
Use cases
- Compare two code snippets to spot differences
- Format JSON payloads for API debugging
- Generate a QR code for a Wi-Fi network password
- Count words and reading time for blog drafts
- Create a secure random password for a new account
toolspace FAQ
Does any data leave my computer?+
No. All tools run entirely in the browser and your data never leaves the tab.
Do I need to create an account?+
No sign-up is required; you can use any tool as often as you like.
Is there a limit on usage?+
There are no daily caps or “pro” plans; usage is unlimited.
What license is Toolspace released under?+
Toolspace is MIT licensed and the source code is publicly available.
Can I run Toolspace locally?+
Yes, you can read the code, run it yourself, or contribute to the project.
Summarized by DevHunt from toolspace.tech · Oct 24, 2026. Details may change; check the official site.
