Alternatives

Products that do what Run arbitrary code in 3rd party Python library with dowhen does

dowhen is an instrumentation tool that allows you to change the function when you can't easily edit the source code. It has a super intuitive interface and a super low overhead.

1
Cliprun▲110
Run Python code from any website with a right-click
2025
2CP
Change Python code while it's running using a reloading loop▲187
2019 · github.com
3
Solarch▲109
Interactive diagrams with AI, and your code always in sync
Jun 2026
4
RunPython.Live▲89
Run Python code in browser
2021
5
Runno▲148
Make embeddable code snippets that run in the browser
2021
6PL
Python library for functional programming▲129
2017 · github.com
7
snippet.run▲149
Run your code, from the cloud on your computer
2024
8
Tach▲140
Untangle + visualize your codebase
2025
9SB
SpaCy – Build tomorrow's language technology products with Python▲93
2015 · spacy.io
10
myCompiler▲122
Run your favourite programming languages online
2019
11
fastht.ml▲123
Modern web applications in pure Python
2024
12PS
Python Source Code Refactoring Toolkit via AST▲110
2021 · github.com
13
Satta▲64
A note taking tool where developers can run Python scripts
2022
14CE
Codebraid – Execute Code Blocks in Markdown (Python, Julia, Rust, R)▲22
2019 · github.com
15CJ
Codeblock.js - Editable, runnable javascript code blocks▲50
2013 · filepicker.github.io
16AC
a compiler from Python syntax to JavaScript syntax (like CoffeeScript)▲32
2010 · pyxc.org
17SI
Sourcery – It's not magic, just powerful instant refactoring for Python▲15
2021 · sourcery.ai
18IG
I got tired of print(x.shape) so I built runtime type hints for Python▲7
As a beginner learning to build ML models, I found it annoying to have to keep printing tensor shapes every other line, having to step through the debugger to check where did I mess up the shapes again. So I built Trickle, it takes the data that flows through your code, caches the types and display them inline (as if you have type annotations). The idea is: "Let types trickle from runtime into your IDE". You get types in Python without having the write them manually. It works by rewriting your Python AST at import time — after every variable assignment, it inserts a lightweight call that…
Mar 2026 · github.com
19PA
Pywebagent – an AI that turns website functionality into Python APIs▲8
Hello everyone! My friend Ori Kabeli and I have been playing around with GPT-4 Vision as a way to control websites and complete complicated tasks online. We created a small proof of concept python package called pywebagent. pywebagent allows performing high level tasks in websites, accessible to developers as simple python functions. It is highly experimental, and only sometimes works, but we think it still might be useful to all you tinkerers out there. Feel free to contribute! Example Use Case: You can order things from amazon with one line of code. pywebagent.act(…
2023 · github.com
20SA
Similar application in different python frameworks▲12
2012 · blog.fruiapps.com
21SJ
Script: JavaScript That Runs Like Rust▲6
Jan 2026 · docs.script-lang.org
22RG
Run Go code directly from Python▲8
2015 · blog.filippo.io
23AL
A library for `exec`ing Python code safely using WASM▲6
Inspired by Simon Willison's blog post that was catalyzed by this HN post: https://news.ycombinator.com/item?id=34598024 wasm_exec is a Wasm-powered, sandboxed implementation of exec() for safely running dynamic Python code There are number of use-cases emerging that require arbitrary code execution, often code that is generated by LLMs (Large Language Models) like ChatGPT. This can enable some really cool functionality - like generative BI or website generation - but also introduce a massive security flaw if implemented via eval() or exec(). This is because arbitrary code can…
2023 · github.com
24IP
Inline Python – Rust macro to write Python directly in Rust source code▲7
2019 · docs.rs

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