SaaSHub helps you find the best software and product alternatives Learn more →
Top 15 C++ Parsing Projects
-
Project mention: LIEF – Library to Instrument Executable Formats | news.ycombinator.com | 2025-05-01
-
Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
-
-
-
Debugging a complex PEG is a nightmarish task. I use various tools, but I couldn't find anything out there that will let you set a breakpoint in a file that's being parsed and let you explore the parsing state.
The most useful tools I found were adjacent to the cpp-peglib library: https://github.com/yhirose/cpp-peglib
This comes with a PEG playground: https://yhirose.github.io/cpp-peglib/
I really liked pegdebug: https://mqnc.github.io/pegdebug/
With sample output here: https://mqnc.github.io/pegdebug/example/output.html
pegdebug is nice for small sets of data, but it rapidly gets swamped by anything over about 50 lines.
If anyone has other suggestions for debugging PEGs, please reply and let me know,.
-
-
-
-
InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
-
docwire
DocWire SDK: Award-winning modern data processing in C++20. SourceForge Community Choice & Microsoft support. AI-driven processing. Supports nearly 100 data formats, including email boxes and OCR. Boost efficiency in text extraction, web data extraction, data mining, document analysis. Offline processing is possible for security and confidentiality
Project mention: DocWire SDK 2025.06.19 Released – Major OCR & PDF Layout Upgrades, Archive Refactor, CI Improvements | dev.to | 2025-06-25Full release notes: https://github.com/docwire/docwire/releases/tag/2025.06.19
-
Jsonifier
A few classes for extremely fast json parsing/serializing in modern C++. Possibly the fastest json parser in C++. Possibly the fastest json serializer in C++. (by RealTimeChris)
Project mention: Achieving a 600% Performance Improvement in String-Literal Comparisons | news.ycombinator.com | 2025-02-18 -
Jasper
A programming language. Static types. Full type inference. Garbage collection. --- not stable
-
-
-
-
-
-
SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C++ Parsing discussion
C++ Parsing related posts
-
Parsing Expression Grammar Template Library
-
Fixing Left and Mutual Recursions in Grammars
-
Llama.cpp guide – Running LLMs locally on any hardware, from scratch
-
Show HN: Matcheroni, a tiny C++20 header library for building lexers/parsers
-
Matcheroni, a tiny C++20 header library for building lexers/parsers
-
Matcheroni, a tiny C++20 header library for building lexers/parsers
-
Use PEGTL to remove my clunky homemade parser
-
A note from our sponsor - SaaSHub
www.saashub.com | 17 Jul 2025
Index
What are some of the best open-source Parsing projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | LIEF | 4,952 |
| 2 | PEGTL | 2,037 |
| 3 | scnlib | 1,195 |
| 4 | cpp-peglib | 983 |
| 5 | json.h | 759 |
| 6 | psychec | 549 |
| 7 | matcheroni | 201 |
| 8 | docwire | 88 |
| 9 | Jsonifier | 82 |
| 10 | Jasper | 61 |
| 11 | JuCC | 43 |
| 12 | e-regex | 35 |
| 13 | cppsimpleuri | 12 |
| 14 | sajson | 3 |
| 15 | MeanscriptCLI | 1 |
Sponsored
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video.
Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
getstream.io