lo - Iterate over slices, maps, channels... by samber
A Lodash-style Go library based on Go 1.18+ Generics (map, filter, contains, find...)
About lo - Iterate over slices, maps, channels...
From the project's README at github.com/samber/lo. Lightly cleaned for readability; for the full source see the upstream repo.
[](https://goreportcard.com/report/github.com/samber/lo) [](https://codecov.io/gh/samber/lo) [](https://github.com/samber/lo/graphs/contributors) [](./LICENSE)
A utility library based on Go 1.18+ generics that makes it easier to work with slices, maps, strings, channels, and functions. It provides dozens of handy methods to simplify common coding tasks and improve code readability. It may look like Lodash in some aspects.
5 to 10 helpers may overlap with those from the Go standard library, in packages and . I feel this library is legitimate and offers many more valuable abstractions.
See also: samber/ro: Reactive Programming for Go: declarative and composable API fo
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 | 21k | github.com/samber/lo |
| GitHub forks | 938 | github.com/samber/lo |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 4.2 years | since Mar 2022 |
| Last commit | 3 days ago | May 4, 2026 |
| Releases shipped | 63 | last: 2 months ago |
| Funding links | 2 | declared by maintainers |
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
Ready to self-host lo - Iterate over slices, maps, channels...?
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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