fast_float
fast_float is A header-only C++ library for fast and exact floating-point and integer parsing.. It is ranked #479 on the Dev Radar, in Languages & runtimes, first seen 4 days ago and shared in 1 post (4.5k views).
fast_float — parse floating-point numbers at a gigabyte per second Skip to content fast_float GitHub C++11 · header-only · triple-licensed Parse floating-point numbers at a gigabyte per second . fast_float is a header-only C++ implementation of std::from_chars for float , double , and integer types. Exact IEEE rounding, no allocations, no exceptions — often many times faster than your standard library. Get started View on GitHub Download v8.3.0 Latest release: v8.3.0 Apache 2.0 MIT Boost Why fast_float? A drop-in from_chars built for performance-critical code paths. Blazing fast Often 4× faster than the best competitor and many times faster…
What people said about fast_float on X
A new fast_float release... fast_float is a super fast number parser in C++ (used by GCC, MySQL, your browser...). The latest release adds support for parsing numbers following the JavaScript standard, so things like 05.1 can be accepted (!!!). https://fastfloat.github.io/fast_float/
— @lemire, 4 days ago · 87 likes · see the post
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fast_float in numbers
- Rank on the Dev Radar: #479 of 1578
- Shared in 1 post by 1 account: @lemire
- 4.5k views on those posts
- First seen 4 days ago, last shared 4 days ago
- Pricing seen by Jev: open source
- Market: Languages & runtimes
FAQ
What is fast_float?
A header-only C++ library for fast and exact floating-point and integer parsing. It was first shared on X 4 days ago and is ranked #479 on the Dev Radar.
Is fast_float free?
It is open source.
Who shared fast_float?
1 account on X, including @lemire, in 1 post totalling 4.5k views.
Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 14.4k posts from 4.7k X accounts over the last 21 days, 1.6k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 21:10 UTC. Full method.