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fmtlib
fmt
C++2015–2026
fmtlib / fmt

fmt

A modern formatting library

Libraries & SDKs
Explore on GitHubRead Hacker News discussions
32Distinct people
53Mentions
0Explicit recommenders
26KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

A modern formatting library

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year53 dated mentions

Observed mentions: 2015-02-10 11:13:33 UTC to 2026-05-13 13:22:09 UTC.

0369122015-01-01 00:00:00 UTC to 2016-01-01 00:00:00 UTC (exclusive): 2 mentions; 2 submissions, 0 comments20152016-01-01 00:00:00 UTC to 2017-01-01 00:00:00 UTC (exclusive): 4 mentions; 1 submissions, 3 comments2017-01-01 00:00:00 UTC to 2018-01-01 00:00:00 UTC (exclusive): 3 mentions; 1 submissions, 2 comments2018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 6 mentions; 2 submissions, 4 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 4 mentions; 0 submissions, 4 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 11 mentions; 0 submissions, 11 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 5 mentions; 1 submissions, 4 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 8 mentions; 2 submissions, 6 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20152015-01-01 00:00:00 UTC2016-01-01 00:00:00 UTC220
20162016-01-01 00:00:00 UTC2017-01-01 00:00:00 UTC413
20172017-01-01 00:00:00 UTC2018-01-01 00:00:00 UTC312
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC202
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC303
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC624
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC404
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC202
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC11011
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC514
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC826
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC303

What Hacker News says

53 sources
anybodyy·May 13, 2026
u can type in crow.toml something like [dependencies] fmt = { git = "https://github.com/fmtlib/fmt" }. crow will clone the repo and will try to find crow.toml in it. cant find? so, crow will use wheels (from the word "wheelchair". it's like a fallback mechanisms) — if there's cmake files — CmakeWheel will be used - it will call cmake -B out_dir -S root (not exactly this command, by you get it), build static lib. and next crow will link your crow project with your non-crow dependency unfortunately there's no os specific commands for now but i will implement them as soon as i finish writing the docs
In I made Rust’s cargo copy but for CPP
gavinray·Apr 9, 2026
The least painful C/C++ build tool I've used is xmake https://github.com/xmake-io/xmake The reason why I like it (beyond ease-of-use) is that it can spit out CMakeLists.txt and compile_commands.json for IDE/LSP integration and also supports installing Conan/vcpkg libraries or even Git repos. set_project("myapp") set_languages("c++20") add_requires("conan::fmt/11.0.2", {alias = "fmt"}) add_requires("vcpkg::fmt", {alias = "fmt"}) add_requires("git://github.com/fmtlib/fmt v11.0.2", {alias = "fmt"}) target("myapp") set_kind("binary") add_files("src/*.cpp") add_packages("fmt") Then you use it like # Generate compile_commands.json and CMakeLists.txt $ xmake project -k compile_commands $ xmake project -k cmake # Build + run $ xmake && xmake run myapp
In Show HN: I built a Cargo-like build tool for C/C++
vitaut·Jul 20, 2025
With fwrite that would be another level of buffering in addition to FILE's buffer. If you are interested in what {fmt} is doing, a good starting point is https://github.com/fmtlib/fmt/blob/35dcc58263d6b55419a5932bd.... It is also possible to bypass stdio completely and get even faster output (https://vitaut.net/posts/2020/optimal-file-buffer-size/) and while it is great for files, it may introduce interleaving problems with things like stdout.
In Stdio(3) change: FILE is now opaque (OpenBSD)
zyntraxis·May 17, 2025
When you want full control over your C++ project without fighting with CMake boilerplate or inconsistent dependency setups, meet Zyn — a powerful tool designed for modern C++ workflows with Git-level dependency tracking, semantic versioning, and a clean project structure. Quick Start Create your project in seconds: zyn new my_project cd my_project Add dependencies directly from Git: zyn install https://github.com/fmtlib/fmt.git@9.1.0 Run it fast, run it clean: zyn run --release Why Zyn? Unlike legacy build systems, Zyn keeps things predictable, clean, and modular: Git-based dependencies with version locking Semantic versioning support Clean project layout with predictable src/, include/, and .zyn/ folders C++ standards support out of the box Automatic compiler flag generation Commands Command What it does zyn new <name> Create a new proje
Read the rest
ct zyn install <url> Install dependency from Git zyn add <path> Add a local dependency zyn run [--debug/--release] Run app zyn update Update all dependencies zyn clean Wipe build artifacts Project Structure Zyn generates a structure that makes sense: project/ ├── .zyn/ │ ├── deps/ # Git dependencies │ ├── build/ # Compiled outputs │ └── lock/ # Version locks ├── src/ # C++ source files ├── include/ # C++ headers └── zyn.toml # Central project config Configuration Example ` [project] name = "my_app" version = "1.0.0" language = "cpp" standard = "c++20" compiler = "clang++" [directories] sources = "src" include = "include" build = ".zyn/build" [dependencies] fmt = { git = "https://github.com/fmtlib/fmt.git", tag = "9.1.0" } boost = { path = "/opt/boost" } [libraries] lib_dirs = ["/usr/local/lib"] libraries = ["pthread", "dl"] ` Dependency Management Add a Git repo directly: [dependencies] json = { git = "https://github.com/nlohmann/json.git", tag = "v3.11.2" } Or use a local path: [dependencies] mylib = { path = "../mylib" } Zyn will lock versions, build automatically, and ensure reproducibility. Best Practices Always commit zyn.toml and .zyn/lock/ Use tagged releases instead of branches Run zyn update regularly to keep deps fresh Prefer minimal, focused dependencies — Zyn makes it easy Conclusion Zyn is what happens when you combine modern package management with low-level power. If you're serious about C++, and want a real workflow, try Zyn. Forget clutter. Forget hacks. Just build. Zyn — When Control Begins.
In [dead]

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