Calm, friendly tools for developers
Practical tools and thoughtful guides
for modern developers.
Birdor is a calm, friendly hub for developers. We build fast, reliable tools, share real-world engineering notes, and explore modern web, cloud, and game server architectures together.
Now shipping
Birdor Tools Layer 1
Fast, deterministic tools for everyday developer workflows: formatters, inspectors, playgrounds, and more.
What makes Birdor different?
Birdor is built for developers who care about clarity, reliability, and a little bit of calm.
Practical tools
Designed for real developer workflows, not just demos or landing page screenshots.
Thoughtful guides
Clear, honest engineering notes on modern web, SaaS, and game backends.
Calm experience
No popups, no dark patterns, no noisy UI. Just focused, friendly tools.
Local-first
Most tools run entirely in your browser — zero data leaves your device unless you choose to.
Fast by default
Static-first architecture with lightweight scripts and predictable performance everywhere.
Private by design
No tracking pixels, no fingerprinting, no hidden telemetry. We don't want your data.
Engineer-first writing
Tutorials focus on tradeoffs, real constraints, and practical details — not buzzwords.
Transparent design
Every tool explains what it does, why it works, and where its limits are.
No ads, no clutter
We value clarity. Pages stay quiet, clean, and optimized for real work.
A few tools to start with
View all tools →JSON Formatter & Viewer
Pretty-print, validate, and inspect JSON with optional minify and key sorting.
Open tool →
JSON Diff & Merge
Compare two JSON documents, highlight changes, and generate a merged output.
Open tool →
Text Encode / Decode
Convert and debug text encodings in your browser: URL encode/decode, HTML entities, Unicode code points, JSON/JS string escaping, and charset byte views (UTF-8/UTF-16/Latin-1).
Open tool →