Browser tools that
respect you.
Zero-server, privacy-first utilities for developers and designers. Everything runs in your browser — no accounts, no uploads, nothing to trust but the code.
40 tools · 0 servers · 0 trackers · 0 cookies · verify in DevTools → Network
The everyday developer toolbox — decode, parse, convert and inspect without leaving the tab.
DNS lookup, RDAP search, HTTP header analysis, WebSocket testing, email headers and CIDR math.
A DuckDB-WASM SQL workbench plus client-side converters: CSV⇄JSON, YAML⇄JSON, SQL formatting, Markdown tables, base conversion and charts.
PII scrubber, metadata stripper, AES-256-GCM notes, password generator, file-hash checker and image steganography.
Front-end helpers: color picker with contrast, gradient maker, favicon and QR generators, meta-tag preview, URL encoder and lorem ipsum.
Why 0-suite?
Most online tools — JWT decoders, SQL runners, image and metadata tools — are SaaS pages that can log whatever you paste. That's a problem when the thing you're handling is a production token, a customer file, or a private document. 0-suite runs every tool in your browser: nothing is uploaded, there are no accounts, and you can confirm zero network activity in DevTools → Network. Five focused hubs, 40 tools, one real URL each — easy to bookmark and share.