folly ☆

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Description:
Collection of reusable C++ library artifacts developed at Facebook

Type: Formula | Latest Version: 2025.12.15.00@0 | Tracked Since: Nov 10, 2025

Links: Homepage | GitHub | formulae.brew.sh

Stars: 30,177 | Forks: 5,829 | Language: C++ | Category: Developer tools

Tags: c-plus-plus library performance concurrency facebook

Install: brew install folly

About:
Folly is a cross-platform library of C++ components designed for practicality and efficiency, particularly in large-scale systems. It provides high-performance abstractions for concurrency, networking, and data structures, often outperforming standard library equivalents. Its value lies in offering battle-tested, production-ready utilities that Facebook uses internally.

Key Features:

High-performance concurrent data structures (e.g., MPMC queues)
Memory-efficient string and I/O utilities (e.g., fbstring, AsyncSocket)
Portable abstractions for system-level operations (e.g., futures, executors)
Extensive benchmarking and testing frameworks
Support for modern C++ standards and compiler optimizations

Use Cases:

Building high-throughput, low-latency network servers and services
Developing performance-critical applications requiring custom memory management
Implementing scalable concurrent algorithms and data processing pipelines

Alternatives:

Boost C++ Libraries – More comprehensive and established, but Folly offers higher performance for specific components like futures and concurrency primitives.
Abseil – Google's C++ common libraries; focuses on foundational utilities, while Folly includes more high-level, Facebook-specific performance optimizations.

Version History

Detected	Version	Rev	Change	Commit
Dec 23, 2025 10:37am	2025.12.15.00	0	VERSION_BUMP	13c1d4dc
Nov 10, 2025 7:04pm		0	VERSION_BUMP	a7873b33
Nov 3, 2025 7:16pm		0	VERSION_BUMP	535dd10a
Oct 21, 2025 8:59pm		0	VERSION_BUMP	61c37d47
Oct 14, 2025 9:40am		0	VERSION_BUMP	005fffff
Oct 7, 2025 12:52pm		0	VERSION_BUMP	5bb3df50
Sep 10, 2025 11:04pm		0	VERSION_BUMP	c78ffd0e
Aug 26, 2025 7:58am		0	VERSION_BUMP	8ac07232
Dec 16, 2024 6:40am		1	VERSION_BUMP	f1a6699b
Nov 27, 2024 5:01am		0	VERSION_BUMP	d2bb20b7
Nov 19, 2024 12:30am		0	VERSION_BUMP	3c88851e
Nov 18, 2024 5:25pm		0	VERSION_BUMP	a718f2c9
Nov 11, 2024 8:38pm		0	VERSION_BUMP	c8d73d5e
Nov 11, 2024 1:18pm		0	VERSION_BUMP	d22ba2ce
Oct 30, 2024 1:07am		0	VERSION_BUMP	e8094ec8
Oct 29, 2024 7:42pm		0	VERSION_BUMP	bc9ed33d
Oct 21, 2024 9:31pm		0	VERSION_BUMP	a9ed56fb
Sep 30, 2024 11:19pm		0	VERSION_BUMP	27f2c914
Sep 20, 2024 3:11am		0	VERSION_BUMP	79929e2e
Aug 28, 2024 10:09am		0	VERSION_BUMP	8dbc9934
Aug 28, 2024 4:08am		0	VERSION_BUMP	52d249eb
Aug 28, 2024 1:05am		1	VERSION_BUMP	241dbd7d
Aug 20, 2024 8:35pm		0	VERSION_BUMP	f72cf9f1
Aug 20, 2024 5:10pm		0	VERSION_BUMP	4a68be4f
Aug 12, 2024 6:16pm		0	VERSION_BUMP	e967deed
Jul 16, 2024 4:49pm		0	VERSION_BUMP	87a7e56b
Jun 22, 2024 4:08am		0	VERSION_BUMP	df17ee7a
Jun 13, 2024 9:03pm		0	VERSION_BUMP	6eebcd8f
Jun 13, 2024 8:34pm		0	VERSION_BUMP	716f0529
May 7, 2024 1:39am		0	VERSION_BUMP	71295364
May 4, 2024 12:39pm		0	VERSION_BUMP	e5610930
May 2, 2024 11:49am		0	VERSION_BUMP	550adefa
Apr 15, 2024 11:57pm		0	VERSION_BUMP	125ce9d3
Jan 25, 2024 10:36pm		1	VERSION_BUMP	8c20ac52
Jan 24, 2024 10:43pm		1	VERSION_BUMP	4f80d780
Oct 24, 2023 9:21am		0	VERSION_BUMP	b5881a77
Oct 23, 2023 2:19am		1	VERSION_BUMP	ff5d7034
Oct 9, 2023 8:34pm		0	VERSION_BUMP	ad18e928
Oct 9, 2023 8:34pm		0	VERSION_BUMP	e9fcd30a
Oct 3, 2023 12:28pm		0	VERSION_BUMP	b30582ae
Sep 20, 2023 1:56pm		0	VERSION_BUMP	bb2ac490
Sep 4, 2023 3:26pm		0	VERSION_BUMP	fcb9b4c9
Aug 28, 2023 9:35am		0	VERSION_BUMP	3862bd9f
May 22, 2023 12:08pm		0	VERSION_BUMP	6d05d323
May 21, 2023 12:52pm		1	VERSION_BUMP	71ba7e6a
May 8, 2023 3:49pm		0	VERSION_BUMP	4bdd3069
May 8, 2023 9:34am		0	VERSION_BUMP	de5ecd29
Apr 10, 2023 4:48pm		0	VERSION_BUMP	42d83ac3
Apr 10, 2023 11:05am		0	VERSION_BUMP	00b4231d
Mar 27, 2023 10:43am		0	VERSION_BUMP	66bd30ad