Zero Allocation JSON Logger by rs
Zero Allocation JSON Logger
About Zero Allocation JSON Logger
From the project's README at github.com/rs/zerolog. Lightly cleaned for readability; for the full source see the upstream repo.
[](https://godoc.org/github.com/rs/zerolog) [](https://raw.githubusercontent.com/rs/zerolog/master/LICENSE) [](https://github.com/rs/zerolog/actions/workflows/test.yml) [](https://raw.githack.com/wiki/rs/zerolog/coverage.html)
The zerolog package provides a fast and simple logger dedicated to JSON output.
Zerolog's API is designed to provide both a great developer experience and stunning performance. Its unique chaining API allows zerolog to write JSON (or CBOR) log events by avoiding allocations and reflection.
Uber's zap library pioneered this approach. Zerolog is taking this concept to the next level with a simpler to use API and even better performance.
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 12k | github.com/rs/zerolog |
| GitHub forks | 620 | github.com/rs/zerolog |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 9.0 years | since May 2017 |
| Last commit | 16 days ago | Apr 21, 2026 |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
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- Show HN: WaveletLM – wavelet-based, attention-free model with O(n log n) scaling
Ready to self-host Zero Allocation JSON Logger?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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