Dev tools · alternatives · 2026

24 alternatives to Runno

Make embeddable code snippets that run in the browser

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Runno launched in 2021; newer entries below may have overtaken it.

1. 1
   I built a WASI playground for running CLI binaries in the browser▲115

   Run WebAssembly made for outside the browser, inside the browser.

   2022 · runno.dev · its alternatives →

2. 2
   snippet.run▲149

   Run your code, from the cloud on your computer

   2024 · snippet.run · its alternatives →

3. 3NJ
   Node.js video tutorials where you can edit and run the code▲258

   Hey HN, I'm Sindre, CTO of Scrimba (YC S20). We originally launched Scrimba to make video learning more interactive for aspiring frontend developers. So instead of passively watching videos, you can jump in an experiment with the code directly inside the video player. Since launch, almost two million people have used Scrimba to grow their skills. However, one limitation is that we've only supported frontend code, as our interactive videos run in the browser, whereas most of our learners want to go fullstack—building APIs, handling auth, working with databases, and so forth. To fix this, we…

   2025 · its alternatives →

4. 4
   Cliprun▲110

   Run Python code from any website with a right-click

   2025 · its alternatives →

5. 5
   Run – a CLI universal code runner I built while learning Rust▲96

   Hi HN — I’m learning Rust and decided to build a universal CLI for running code in many languages. The tool, Run, aims to be a single, minimal dependency utility for: running one-off snippets (from CLI flags), running files, reading and executing piped stdin, and providing language-specific REPLs that you can switch between interactively. I designed it to support both interpreted languages (Python, JS, Ruby, etc.) and compiled languages (Rust, Go, C/C++). It detects languages from flags or file extensions, can compile temporary files for compiled languages, and exposes a unified REPL…

   2025 · github.com · its alternatives →

6. 6
   Bun▲303

   A fast JS runtime Node.js replacement with built‑in tools

   Dec 2025 · bun.com · its alternatives →

7. 7
   RunPython.Live▲89

   Run Python code in browser

   2021 · its alternatives →

8. 8
   Run Python, Ruby, Node.js, C++, Lua in the Browser via x86 to WASM JIT▲171

   Linux virtual machine, running in the browser via HTML5/WebAssembly. Networking and graphics supported.

   2021 · repl.leaningtech.com · its alternatives →

9. 9
   Codemeup▲191

   Embed code snippets directly from Github

   2024 · its alternatives →

10. 10
    SnippetEase▲188

    Embeddable code snippet generator

    2024 · devtool.site · its alternatives →

11. 11
    BitRun▲70

    Run, embed and share code snippets

    2016 · its alternatives →

12. 12WW
    Wasmino = WASM and Arduino – Running Arduino Code in Browser▲84

    2020 · blog.yifangu.com · its alternatives →

13. 13
    CodeSnippet.Run▲77

    Run multiple JavaScript code snippets on a single page.

    2021 · codesnippet.run · its alternatives →

14. 14
    PythonSandbox▲157

    Write, run, debug, embed and share your Python code

    2022 · its alternatives →

15. 15
    CodeMenu▲135

    Snippets manager reinvented

    2024 · its alternatives →

16. 16
    Anyfiddle▲145

    Build, run and share code in any language from your browser

    2021 · anyfiddle.com · its alternatives →

17. 17
    Embed runnable code snippets on your website▲10

    You can now embed runnable code snippets from [repl.it](https://repl.it) on your blog or website. Just go to [repl.it](https://repl.it) and pick one of the languages listed below, save your code and ...

    2015 · amasad.me · its alternatives →

18. 18
    Runnable Snippets by Tech.io▲7

    Share runnable code, everywhere

    2017 · codingame.com · its alternatives →

19. 19
    Runme.io▲116

    Run your application from any public Git repo with one click

    2020 · runme.io · its alternatives →

20. 20
    Openleetcode – Local LeetCode runner where tests live in the repo▲73

    You write a standard solution, just like on LeetCode, and run it through the CLI. It identifies the problem by ID or title, executes your code against local test cases, and shows the result. It currently supports around 1.4k problems and multiple languages, including Python, C++, Rust, Java, Go, TypeScript, Swift, and others. The project is still an MVP. System design, SQL, and concurrency problems are not supported yet, but support for more problem types is planned. Made in Haskell!

    Aug 2026 · github.com · its alternatives →

21. 21
    Sandboxing untrusted code using WebAssembly▲76

    Hi everyone, I built a runtime to isolate untrusted code using wasm sandboxes. Basically, it protects your host system from problems that untrusted code can cause. We’ve had a great discussion about sandboxing in Python lately that elaborates a bit more on the problem [1]. In TypeScript, wasm integration is even more natural thanks to the close proximity between both ecosystems. The core is built in Rust. On top of that, I use WASI 0.2 via wasmtime and the component model, along with custom SDKs that keep things as idiomatic as possible. For example, in Python we have a simple decorator:…

    Feb 2026 · github.com · its alternatives →

22. 22
    TypeScript Console▲73

    Run TypeScript snippets directly in Chrome DevTools

    2024 · chromewebstore.google.com · its alternatives →

23. 23
    Snippets.Ninja▲68

    Code snippets manager. Free and open source.

    2022 · expireddomains.com · its alternatives →

24. 24
    RunCode▲67

    Collaborative cloud development environment

    2023 · runcode.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →