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Top 4 Rust web-app Projects
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numbat
A statically typed programming language for scientific computations with first class support for physical dimensions and units
Qalculate <https://qalculate.github.io/> is my favourite REPL-like calculator, although it unfortunately lacks an iOS app. It feels similar to using an HP 48-series calculator.
Numbat <https://numbat.dev/> is similar, but more CLI/REPL-focused, and with more of an emphasis on being a programming language.
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AppSignal
AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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jotsy
Jotsy is a self-hosted, free and open-source note taking app with a goal of simplicity in mind
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Rust web-app discussion
Rust web-app related posts
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Frink
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Typst – Compose Papers Faster
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Jotsy – a self-hosted, free and open-source note taking app
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Jotsy – a self-hosted, free and open-source note taking app
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Announcing calc: a powerful CLI calculator app
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A note from our sponsor - Kargo
akuity.io | 11 Sep 2026
Index
What are some of the best open-source web-app projects in Rust? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | numbat | 2,677 |
| 2 | jotsy | 512 |
| 3 | ln-nostr-rs-relay | 5 |
| 4 | Lightning-lending-PoC | 2 |
Sponsored
AppSignal knows why the f*#k it crashed.
Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
www.appsignal.com