UniFFI
Ranked 2 of 3 binding generators by recommenders
Developers use it to share Rust code with iOS and Android apps through generated language bindings, and say it works well once set up.
Developers use it to share Rust code with iOS and Android apps through generated language bindings, and say it works well once set up.
9 people gave an opinion
- recommend it
- 9
- criticize it
- 0
- approval share
- 100%
Recommended in 6 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: recommended
- August 2026: not recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 9 people recommend itNeeds 10 or more, not met.
- Nobody criticizes itNeeds 2 to 1 or better, met.
- Recommended in 6 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Shares Rust code across platforms
“native for iOS and Android with common core in rust exposed through uniffi”
Comment from 10 Sep 2026 in “Shopify is moving from React Native back to Swift and Kotlin” “makes this a lot easier across platforms”
Comment from 29 Oct 2026 in “noalloc: Tooling and libraries to enforce zero heap allocations in Golang” “shared Rust code via UniFFI”
Comment from 10 Sep 2026 in “Shopify is moving from React Native back to Swift and Kotlin” Works well in real projects
“I've seen it work in a few real projects now, with just a little build system friction up front.”
Comment from 10 Sep 2026 in “Shopify is moving from React Native back to Swift and Kotlin” “they were using uniffi-rs and seemed to have great results”
Comment from 6 Nov 2025 in “Swift on FreeBSD Preview” “once it was set up it worked extremely well”
Comment from 22 Dec 2025 in “Build Android apps using Rust and Iced”
What people warn about
Each mark is one comment
Higher-fidelity bindings exist elsewhere
“much higher fidelity bindings than what you can get out of E.G. UniFFI”
Comment from 26 Jul 2026 in “Some more things about Django I've been enjoying”
Other binding generators people recommend
The two most recommended other binding generators, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| PyO3 | 16 | 1 | 94% | 10 | — | Approved |
| UniFFIThis page | 9 | 0 | 100% | 6 | — | — |
| flutter_rust_bridge | 6 | 0 | 100% | 8 | — | — |
What people said
8 of the 9 comments that mention it, newest first. Each links to the original comment.
“makes this a lot easier across platforms”
“I've seen it work in a few real projects now, with just a little build system friction up front.”
“native for iOS and Android with common core in rust exposed through uniffi”
“shared Rust code via UniFFI”
“much higher fidelity bindings than what you can get out of E.G. UniFFI”
“So basically well known and very good Open Source”
“once it was set up it worked extremely well”
“they were using uniffi-rs and seemed to have great results”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.