PHPhilippGille·Dec 11, 2025
There's various alternatives. For example:
- https://github.com/goccy/go-json
- https://github.com/bytedance/sonic
In Golang optimizations for high‑volume servicesbytedance
sonic
Go2021–2025
bytedance / sonic
sonic
A blazingly fast JSON serializing & deserializing library
11Distinct people
12Mentions
0Explicit recommenders
9.7KGitHub stars
What to know before exploring
What it is
A blazingly fast JSON serializing & deserializing 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
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 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 year12 dated mentions
Observed mentions: 2021-11-21 15:02:18 UTC to 2025-12-11 22:55:08 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 2 | 1 | 1 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 6 | 2 | 4 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 3 | 1 | 2 |
What Hacker News says
12 sourcesAnd Sonic with its "cutting edge" optimization is still slower than std Json on arm64 with basic use cases. It shows that JIT, simd, low level code comes at cost of maintenance for all platform.
https://github.com/bytedance/sonic/issues/785
In A new experimental Go API for JSONSonic: A blazingly fast Golang JSON serializing and deserializing
1 points · Open discussionPerhaps some package authors are more accepting of this than others. I stumbled upon this comment in the `json` package the other day:
// isValidNumber reports whether s is a valid JSON number literal.
//
// isValidNumber should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
// - github.com/bytedance/sonic
In Hyrum's Law in GolangSIMD is possible in Go, see: https://github.com/bytedance/sonic
Between Go and Rust for infra, let's say that Go is the #1, Rust if far far behind. Most recent infra tools are built in Go, Kubernetes, Docker, Prometheus, Grafana, Terraform etc ...
In Building a Streaming Platform in Go for PostgresI’m not seeing simdjson in them though? I must be missing something because the Go port of it is explicitly mentioned in the motivation[1] (not the real thing, though).
[1] https://github.com/bytedance/sonic/blob/main/docs/INTRODUCTI...
In Building a high performance JSON parserGreat to see a shout out to Phil Pearl!
Also worth looking at https://github.com/bytedance/sonic
In Building a high performance JSON parserSonic: A fast JSON serializing and deserializing library in Go
3 points · Open discussionToward the Fastest, Compatible JSON Decoder – Sonnet
Good morning.I hope this is not the wrong place to post… so let me introduce my first public Golang package. This is a JSON decoder called Sonnet ( https://github.com/sugawarayuuta/sonnet ) that has given faster results (at least in my environment) than Sonic - https://github.com/bytedance/sonic (which is said that it's the fastest) without the help of assembly!
JSON is a very well-known file format. It is used by everyone who does programming. However, it is also not uncommon to find problems with encoding/json and other third-party libraries. for more… (see https://github.com/sugawarayuuta/sonnet#problems-we-had )
I decided to create a new, standard library-compatible decoder that would be both easy to use and fast.
Thanks for reading, feel free to use, help, or ask questions, I look forward to hearing from you. All benchmarks and other
Read the rest
information can be found in the link at the top.
It is mentioned here: https://github.com/bytedance/sonic/blob/a577eafc253adb943924..., but it isn't included in the benchmarks graphs. Seems this repo is specifically focused on Golang and isn't necessarily motivated by being the fastest JSON [de]serializer on the planet.
In Sonic: A fast JSON serializing and deserializing librarySonic: A fast JSON serializing and deserializing library
98 points · Open discussion