Every developer needs quick tools — JSON formatter, Base64 encoder, JWT decoder, regex tester, PDF...
ToolsStack: 21 browser-based dev tools (JSON formatter, JWT decoder, PDF compressor, Base64 encoder) executing fully client-side—zero uploads, no tracking, no signup. For IT teams: eliminates credential exposure from public online services; Cloudflare Pages deployment with vanilla JS provides speed and zero-trust privacy without signup friction.
Every developer needs quick tools — JSON formatter, Base64 encoder, JWT decoder, regex tester, PDF compressor, GIF maker. But I always hesitated to paste sensitive data into random tool sites. Where does that data go?
So I built ToolsStack — 21 tools that run 100% in your browser.
The tools
Why another tool site?
100% client-side — nothing leaves your browser
I got tired of the same thing happening every day. Google "json formatter online." Land on a site...
JSON formatter, text diff checker, base64 encoder, UUID generator, markdown editor, and more. Zero install, works offline.
'## What I Built Eight developer tools that run entirely in your browser — no files uploaded, no...
Every developer has a folder of bookmarks for one-off tools — a JWT decoder here, a Base64 encoder...
I Built 30+ Free Online Tools with Vanilla JS – No Frameworks, No Signup Why I Built This As a...
I built CodeToolkit — 14 free dev tools, no login, no BS Every developer has been...
