ada-url/ada
WHATWG-compliant and fast URL parser written in modern C++, part of Internet Archive, Node.js, Clickhouse, Redpanda, Kong, Telegram, Adguard, Datadog and Cloudflare Workers. observed · 2026-08-28
Health v2 · maintenance only
97/100
- Activity 99
- Release rhythm 95
- Longevity 96
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 11.5
- age_days: 1355
- days_rel: 37
- days_push: 9
- n_releases_24m: 23
Adoption not part of the score
1829 stars · 136 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Ada is a fast, WHATWG-compliant URL parser written in modern C++, including a full URLPattern implementation. It is the default URL parser in Node.js and is used by Cloudflare Workers, Redpanda, Kong, Telegram, and Datadog.
Use cases
- parse and normalize URLs in a C++ application
- validate URLs against the WHATWG URL standard
- match URLs against patterns with URLPattern
- speed up URL parsing in a high-throughput server
- handle internationalized domain names and Unicode URLs
When to choose
- you need spec-compliant WHATWG URL parsing in C++
- performance matters and you parse many URLs
- you want a battle-tested parser used by Node.js and Cloudflare
When to avoid
- you need RFC 3986 behavior rather than WHATWG normalization
- your project is not in C++ or lacks C++ integration
Facets
library · maturity stable
parser http-client developer-tools web-development parsers developer-tools apis cpp windows cross-platform url-parsing whatwg-url urlpattern simd performance unicode idn linux macos
3 sources
- readme: https://github.com/ada-url/ada · fetched 2026-08-28 · 80e0b48fdde7
- homepage: https://ada-url.com · fetched 2026-08-29 · 9c2c364a19d3
- site_page: https://ada-url.com/introduction · fetched 2026-08-29 · 6e03c6e46e47
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ada-url/ada | main | 97 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem