Life & fun · alternatives · 2026
24 alternatives to A fast JSON library for Go
Fast JSON encoder/decoder compatible with encoding/json for Go - goccy/go-json
A fast JSON library for Go provides high-performance JSON parsing and encoding capabilities for Go developers. It is designed for programmers who need efficient JSON processing in their applications. The library stands… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A fast JSON library for Go launched in 2021; newer entries below may have overtaken it.
- 1
high performance JSON encoder/decoder with stream API for Golang - GitHub - francoispqt/gojay: high performance JSON encoder/decoder with stream API for Golang
2018 · github.com · its alternatives →
- 2
Fast JSON parser and validator for Go. No custom structs, no code generation, no reflection - valyala/fastjson
2018 · github.com · its alternatives →
- 3
high performance JSON encoder/decoder with stream API for Golang - GitHub - francoispqt/gojay: high performance JSON encoder/decoder with stream API for Golang
2018 · github.com · its alternatives →
- 4
2014 · journal.paul.querna.org · its alternatives →
- 5
Easy-to-use JSON Library for Go. Contribute to antonholmquist/jason development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 6
Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy - ijl/orjson
2018 · github.com · its alternatives →
- 7
THE fastest alternative JSON parser for Go that does not require schema - buger/jsonparser
Jul 2026 · github.com · its alternatives →
- 8
Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js
2014 · github.com · its alternatives →
- 9
Easy JSON Query Processor with a Lispy syntax in Go - cube2222/jql
2020 · github.com · its alternatives →
- 10
Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod
2014 · github.com · its alternatives →
- 11
Hello HN! I want to introduce fastgron, my new project. fastgron is a JSON to GRON converter, built to be incredibly fast – it's 40 times faster than Gron. GRON is a tool for making JSON greppable, but it can slow down with larger files. With fastgron, even a 200MB JSON file can be converted in just 1 second. Key features include streaming conversion for memory efficiency and an optimized path reconstruction for faster operations. It leverages C++ and the simdjson and fast_io libraries for speed. I welcome all feedback, suggestions, or questions. Thank you!
2023 · github.com · its alternatives →
- 12GI
2019 · gocode.io · its alternatives →
- 13
First time ever working on something like this, check it out
2024 · github.com · its alternatives →
- 14
the JS/Node.JS library for encoding complex and unconventional data structures. Support for BigInts, TypedArrays, null, undefined, and Symbol. Multiple flavors available. - DO-SAY-GO/WeirdJSON
2020 · github.com · its alternatives →
- 15
- What's different? It's fast. On my machine, the stream decoder is faster than bytedance/sonic which claim to be the fastest even though mine is written in pure Go and Sonic is written in Go + C + Assembly. It also is a drop-in replacement of the standard library. - Why is it fast? technologies used are in my articles (available in English and Japanese) EN: https://sugawarayuuta.medium.com/still-i-wanted-to-build-the... JA: https://zenn.dev/sugawarayuuta/articles/2a5a3cb3f9a504
2023 · github.com · its alternatives →
- 16
I've just released gosax, a new Go library for high-performance SAX (Simple API for XML) parsing. It's designed for efficient, memory-conscious XML processing, drawing inspiration from quick-xml and pkg/json. https://github.com/orisano/gosax Key features: - Read-only SAX parsing - Highly efficient parsing using techniques inspired by quick-xml and pkg/json - SWAR (SIMD Within A Register) optimizations for fast text processing gosax is particularly useful for processing large XML files or streams without loading the entire document into memory. It's well-suited…
2024 · github.com · its alternatives →
- 17
⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API - iamkun/dayjs
2018 · github.com · its alternatives →
- 18
Minimal and idiomatic WebSocket library for Go. Contribute to coder/websocket development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 19
- 20AF
Serialization framework with some interesting numbers: 10-20x faster on nested objects than json/protobuf. Technical approach: compile-time codegen (no reflection), compact binary protocol with meta-packing, little-endian layout optimized for modern CPUs. Unique features that other fast serializers don't have: - Cross-language without IDL files (Rust ↔ Python/Java/Go) - Trait object serialization (Box) - Automatic circular reference handling - Schema evolution without coordination Happy to discuss design trade-offs. Benchmarks:…
Oct 2025 · fory.apache.org · its alternatives →
- 21
Goka is a compact yet powerful distributed stream processing library for Apache Kafka written in Go. - lovoo/goka
2017 · github.com · its alternatives →
- 22
Guts is a code generator that converts Golang types to Typescript. Useful for keeping types in sync between the front and backend. - coder/guts
Nov 2025 · github.com · its alternatives →
- 23JA
2015 · hperadin.github.io · its alternatives →
- 24
A generator library for concise, unambiguous and URL-safe UUIDs - lithammer/shortuuid
2015 · github.com · its alternatives →
Also compare
- Gojay – Performant JSON encoder/decoder for Golang alternatives
- fastjson - Fast JSON Parsing for Go alternatives
- Gojay – highly performant JSON encoder/decoder for Golang alternatives
- ffjson: faster json serialization in Go alternatives
- Jason – A new JSON Library for Go alternatives
- Python JSON library in Rust, faster than ujson alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →