google/re2
- Total stars
- 9,817
- Today · UTC
- +1since 11:05 UTC
More actions
RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.
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About the project
A C++ regular expression library with guaranteed linear-time matching, safe against untrusted input. It does not support backreferences or look-around, but avoids catastrophic backtracking.
Useful for
- Process user-supplied regex in a service without ReDoS risk
- Parse and validate strings in C++ with submatch extraction
- Replace PCRE or std::regex in hot paths for predictable runtime
README summarized by DeepSeek V4.1 Flash. Details may be inaccurate.
Star growth looks organic. Data as of October 7, 2026, 12:58 UTC.
The star-growth assessment does not verify whether the project is safe to run.
Stars per day
Bars show daily stars; the line is a moving average of the available history. Short histories do not yet establish a reliable usual pace. Red marks spike days.
Why it’s trending
- Star-counter measurements on 2026-10-07 (UTC), 11:05–12:55: 9816 → 9817 stars (+1). This is the change over that interval.
- Estimated end-of-day forecast: about +2 stars, using observed gains and the previous day.
- GitHub Trending C++ today: #10, +3 stars.
Three GitHub discoveries in each edition
What they do, why they are gaining interest, and what to check before using them.
Editions at 10:00, 16:00, 22:00 MSK.
Numbers
- Total stars
- 9,817
- Today
- +1 star measured 2026-10-07, 11:05–12:55 UTC, ≈ 2 by evening
- Forks
- 1,252
- Issues and pull requests
- 639
- Watchers
- 231
- Language
- C++
- License
- BSD-3-Clause
- Latest release
- 2025-11-05 · November 5, 2025
- Created
- August 18, 2014
- Last push
- October 2, 2026
Star trust
Growth looks organic: forks and discussion are in line with active projects, and stars arrive unevenly, the way people give them.
These are heuristics, not a verdict: we judge by the repository’s behavior, not by a list of stargazers.
Spotted in
- October 7, 2026GitHub Trending C++ today: #10, +3 stars
README badge
Paste it into your README — the badge shows the current magnitude and links to this page.
[](https://gitnova.dev/en/r/google/re2)