Free tools.
Free notes.
Free, forever.
Postcodes for 60+ countries. Addresses worldwide. Deep engineering notes. Open APIs. Built by Malaysian engineers, given away — no signup, no paywall, no "free tier with limits."
- 1,800+ lessons
- 8.6M places indexed
- 195 countries
- RM 0 to use
Learn it. Read it. Discuss it.
Four places, one promise: free forever, no ads, no tracking, built in Kuala Lumpur.
Educative
structured engineering courses
Not scattered blog posts — full multi-part courses you read like a book.
- Deep tracks: system design, event-driven architecture, distributed systems
- Table of contents, next/prev, reading time, search — a real reading experience
- No signup, no paywall, no “free chapter” tricks
Articles
engineering write-ups, real diagrams
How this stack is actually built — architecture, trade-offs, honest lessons.
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Feeds & Podcasts
launches as they ship · shows worth your commute
Ten AWS sources as full readable articles, plus eighteen engineering podcasts — Stack Overflow, The Changelog, Lex Fridman — playable right in the page.
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Circle
the developer community
Post what you're building, follow people worth following, DM privately.
Follow the map.
Every xwira destination on one sheet — start at the harbor, climb the mountains, pass the village, trade at the harbor, and ✕ marks the treasure. Every landmark is real, and free.
Two search boxes, no signup.
Type something — a Malaysian postcode, or any address on Earth. Results render inline. Same API you'd use programmatically.
Tools you can call in one line.
Each tool below is public, no login, no quota-hidden features. Companies pay for bulk API access; individuals pay nothing.
Dev Tools
JSON, YAML, TypeScript types, jq with charts, regex, cron, diff, docker-compose, encryption and more — every tool runs in your browser. Nothing you paste ever leaves the page.
Postcode
60+ countries. 8.6M places. Search by postcode or place name. Public REST API + built-in web UI.
Address
Worldwide address & geocoding, backed by Photon (OpenStreetMap). Fuzzy full-text search, includes lat/lng.
How this stack is built — from the people building it.
Engineering write-ups with real architecture diagrams live at articles.xwira.tech. Free to read, no signup, no paywall — like everything else here.
Building a free postcode API for 60+ countries
GeoNames pipeline, boring PostgreSQL, and why free is sustainable.
Wrapping a geocoder: the adapter pattern in production
Photon + OpenStreetMap behind a thin API that owns the contract.
circle: a social network with no ads — and no email field
Handle + TOTP identity, activity-stream feeds in plain SQL, DMs.
Want to write here? Publishing is tied to a circle account — our developer community. circle is invite-only: any member can mint you a single-use invite link, and signup takes a handle, a password, and an authenticator app. No email, ever. Once you're in, you can post on circle today — and article publishing for members is coming next.
Xwira runs on time and coffee.
Hosting the free tier costs us real money each month. If you use it, keep it going with a one-off tip or a monthly membership. Companies who need bulk API access — get in touch.