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Alternatives

Products that do what TypeScript Notebook does

Experiment with TypeScript - with npm in your browser

  1. 1

    Run TypeScript snippets directly in Chrome DevTools

    2024

  2. 2

    Jupyter Notebooks for the web

    2022

  3. 3

    Turn your browser into a cozy, nostalgic writing nook

    Feb 2026

  4. 4
    TypeORM81

    Node.js ORM written in TypeScript

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  5. 5

    Create, run & share your custom tools effortlessly

    2023

  6. 6

    The last TypeScript release built on JavaScript

    Mar 2026

  7. 7
    pdfme106

    Open source PDF library fully written in TypeScript

    2022

  8. 8
    Runno148

    Make embeddable code snippets that run in the browser

    2021

  9. 9JR
  10. 10
    Reflag117

    First ever self-cleaning feature flags for TypeScript

    Sep 2025

  11. 11

    The Browser Automation IDE

    Dec 2025

  12. 12

    Inspect webhook payloads with automatic type generation

    2022

  13. 13

    JS notebook in the browser - Click. Code. No friction.

    Nov 2025

  14. 14

    Scientific computation for JavaScript

    2016

  15. 15MP

    Mercury is a perfect tool to share your Python notebooks with non-programmers. - You can turn your notebook into web app. - You can add interactive widgets to your notebook by defining the YAML header. Your users can change the input and execute the notebook. - You can hide your code to not scare your (non-coding) collaborators. - Users can interact with notebook and save they results. - You can share notebook as a web app with multiple users - they don't overwrite original notebook. The demo running at Heroku (free dyno) http://mercury-demo-1.herokuapp.com, at AWS EC2 (t3a.small)…

    2022 · github.com

  16. 16RJ
  17. 17SA

    Scribbler is a tool to do experimentation in JavaScript using a notebook kind of environment. It runs in the browser without the need for a backend. It is deal for learning and experimentation in JavaScript. USP of Scribbler are: no login, no node/npm, can load ES 6 modules. Check the website at: https://scribbler.live. The web-app is available at: https://app.scribbler.live. Scribbler has been built to satisfy a need for doing experimentation. Jupyter Notebook is very popular amongst python developers and data scientists for experimentation. It gives a simple…

    2024 · app.scribbler.live

  18. 18BR

    Hi HN! I built Belgie, a Python library that embeds Deno, allowing Python applications to run JavaScript and TypeScript without requiring Node.js or Deno to be installed on the host system. It supports the features you’d expect from Deno (npm, JSR, and URL imports, isolated package environments, etc.), plus: - Pass JSON-safe values seamlessly between Python and JavaScript. - Agentic code generation with typed interfaces, similar to Pydantic’s Monty. - Manage dependencies programmatically or from the CLI.

    Jul 2026 · github.com

  19. 19IW

    Hi! I wanted to understand more about databases' internals so I wrote one from scratch. It has a T-SQL inspired syntax with support for functions and procedures. It can be used stand-alone as a SQL engine or with a server allowing for persistence and replication to other connected clients. Performance are nothing near sqlite of course but that's beside the point. It’s a small database engine that can run in a web app as a way to store session data, do small calculations on a web worker, store the document/data the user is editing or facilitate “multiplayer” feature by broadcasting the…

    2022 · github.com

  20. 20

    The open-source computational canvas for STEM

    20d ago · github.com

  21. 21DA

    This demo is build with subZero [0] - The TypeScript library to build internal tools fast Everything is running in JS (express+react-admin), there are no external dependencies (other supporting services), which makes for an easy deployment (single container/service) to any platform that can run JavaScript. The demo uses SQLite as the db but PostgreSQL/MySQL/ClickHouse are also supported. [0] https://getsubzero.today/

    2023 · demo.subzero.cloud

  22. 22PC

    Hi HN! I recently built Neutrino Notebooks, an open source python library for compiling Jupyter notebooks into FastAPI apps. I work with notebooks a ton and typically find myself refactoring notebook code into a backend or some other python script. So, I made this to streamline that process. In short, it lets you: - Expose cells as HTTP or websockets endpoints with comment declaratives like `@HTTP` and `@WS` - Periodically run cells as scheduled tasks for simple data pipelines with `@SCHEDULE` - Automatic routing based on filename and directory structure, sort of similar to NextJs. - Ignore…

    2023 · docs.neutrinolabs.dev

  23. 23JP
  24. 24AB

    Hey HN, I built a custom IDE in the browser as part of the Open Data Capture platform. It is based on the Monaco editor, which also powers VS Code. Unfortunately, there are very few examples online showing how to use Monaco with more advanced features (e.g., TypeScript/JSX support, Prettier integration, multiple files), so I figure this could be helpful for some folks out there. I built this to allow semi-technical users to design instruments (e.g., forms and interactive tasks) for our data capture platform. It includes a custom build toolchain, based on the esbuild-wasm build, that…

    2024 · playground.opendatacapture.org

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