One box · 57+ tools · client-side by default
Every developer utility. In your browser.
Format JSON, decode JWTs, convert timezones, hash strings, build regex — without bouncing between 40 bookmarks or sketchy ad-heavy sites. Every transform runs client-side.
Privacy by default
100% client-side transforms — your data never leaves your browser. GA4 for aggregate page views only, cookieless by default.
Fast by default
Every page SSR'd. Lighthouse 100s gated by CI on every PR.
Keyboard-first
⌘K from anywhere. Jump to any tool in two keystrokes.
Shareable state
Inputs encoded in URL hash — share without leaking server-side.
Categories
View all →JSON
Format, validate, transform, diff JSON
Encoding
Base64, URL, HTML entities, hex
Text
Diff, case convert, lorem, slugify, sort
Time
Unix, timezone, ISO 8601, cron, dates
Crypto
Hashing, password, UUID, random
Regex
Test, build, explain regular expressions
Network
Uptime check, DNS, my IP, URL, HTTP status, user agent
Color
Convert, contrast, palettes
Image
Base64, convert, optimize, QR
Code
SQL, chmod, JWT, syntax helpers
AI
Token count, LLM cost, prompt diff
Misc
Everything else useful
Resources
View all →When our own tools can't help, we point to the best option we know of. Hand-picked directories of external platforms across AI, SEO, DevOps, and more — no affiliate links, ever. 284 links · 7 categories
AI & LLM Tools
Curated directory of LLM providers, agent frameworks, and self-hostable AI tools — with links straight to the source.
79 links
SEO & Marketing Tools
Search consoles, analytics, ads platforms, and site-audit tools we trust for growing web traffic.
32 links
DevOps, Cloud & Hosting
Platforms and tools for shipping, running, and observing production workloads — from static sites to multi-region fleets.
33 links
Databases & Data
Relational, document, vector, and analytics databases — plus GUIs, migration tools, and streaming platforms.
40 links
Design & Assets
Design tools, icon packs, UI kits, stock imagery, fonts, and color systems for shipping beautiful product UI.
35 links
Productivity & Notes
Note-taking, task management, launchers, terminals, and focus tools — the software developers reach for daily.
32 links
Security & Identity
Password managers, auth providers, secret scanning, VPNs, and vulnerability tooling for shipping secure apps.
33 links
Active build
Currently 57 tools live · 12 categories · new tools ship weekly.