nowfound

Dev tools · alternatives · 2026

ZC

24 alternatives to Zunzun.com now 100% open source Python

The full Python source code for zunzun.com online curve and surface fitting is at https://bitbucket.org/zunzuncode/zunzunsite3

Zunzun.com is an open source Python application for online curve and surface fitting. The complete source code is publicly available on Bitbucket, allowing developers to inspect, modify, and deploy the software… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Zunzun.com now 100% open source Python launched in 2018; newer entries below may have overtaken it.

  1. 1

    Latest News {{post_title link:post}} Previous Next No results found. Python Browse all Python answers Django Flask Pandas NumPy PyTorch Javascript Browse

    2017 · sourcetrail.com · its alternatives →

  2. 2

    Python 3 tkinter graphical curve fitting and surface fitting application, saves results to PDF. - zunzun/tkInterFit

    2016 · github.com · its alternatives →

  3. 3

    This is a powerful online curve fitting tool that supports fitting dozens of commonly used functions and implicit functions. It features a clean interface and simple operation. If you need to perform curve fitting but don't want to learn professional software like Matlab or Origin, you can try this tool.

    Nov 2025 · byx2000.github.io · its alternatives →

  4. 4

    :snake: :bar_chart: :chart_with_upwards_trend: Build complex dashboards without any front-end code. Use your own endpoints. JSON config only. Ready to go. - GitHub - christabor/flask_jsondash: :snake: :chart_with_upwards_trend: Build complex dashboards without any front-end code. Use your own endpoi

    2016 · github.com · its alternatives →

  5. 5

    Build 3D interactions visually, without writing any code

    2015 · 3d-transforms.webflow.com · its alternatives →

  6. 6

    Hi, I am David Kircos. The Founder of Quadratic (https://QuadraticHQ.com), an open-source spreadsheet application that supports Python, SQL (coming soon), AI Prompts, and classic Formulas. Unlike other spreadsheets, Quadratic has an infinite canvas (like Figma). As a result, you can pinch and zoom to navigate large data sets, and everything renders smoothly at 60fps. Our vision is to build a place where your team can collaborate on data analysis. You can write Python, AI Prompts, and Formulas in one spreadsheet feeding each other data and updating automatically. Quadratic is built…

    2023 · quadratichq.com · its alternatives →

  7. 7

    Hello, we just launched the alpha release of Pynecone - a way to build full-stack web apps in pure Python. The framework is easy to get started with even without previous web dev experience and is completely open source / free to use. We made Pynecone for Python devs who want to make web apps, but don’t want the overhead of having to learn or use Javascript. We wanted more flexibility than existing Python frameworks like Streamlit/Dash that don't allow the user to make real, customizable web apps. With Pynecone, you can make anything from a small data science/python project to…

    2022 · github.com · its alternatives →

  8. 8

    Open source, dev-friendly and powered by GraphQL and React

    2019 · webiny.com · its alternatives →

  9. 9

    ChunkHound’s goal is simple: local-first codebase intelligence that helps you pull deep, core-dev-level insights on demand, generate always-up-to-date docs, and scale from small repos to enterprise monorepos — while staying free + open source and provider-agnostic (VoyageAI / OpenAI / Qwen3, Anthropic / OpenAI / Gemini / Grok, and more). I’d love your feedback — and if you have, thank you for being part of the journey!

    Jan 2026 · github.com · its alternatives →

  10. 10

    been working on this for nearly a year

    2023 · github.com · its alternatives →

  11. 11

    Minimalist and powerful Web Crawler. Contribute to untwisted/sukhoi development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  12. 12
  13. 13
    WebDen▲119

    Open source web code playground built for mobile

    2021 · webden.dev · its alternatives →

  14. 14

    A tool for refurbishing and modernizing Python codebases - dosisod/refurb

    2022 · github.com · its alternatives →

  15. 15ID
  16. 16

    The biggest marketplace of readymade no code web scrapers

    2021 · webautomation.io · its alternatives →

  17. 17

    Pydoll is a library for automating chromium-based browsers without a WebDriver, offering realistic interactions. - GitHub - autoscrape-labs/pydoll: Pydoll is a library for automating chromium-based browsers without a WebDriver, offering realistic interactions.

    2025 · github.com · its alternatives →

  18. 18
    Zuflow▲75

    Build 3D assemblies with visual logic

    Apr 2026 · zuflow.io · its alternatives →

  19. 19

    Free browser-based SQL editor powered by DuckDB. Query and visualize CSV, JSON, Parquet and Arrow files locally or from remote URLs. No installation required.

    2024 · sql-workbench.com · its alternatives →

  20. 20RA

    Hey HN! My friends and I built a new platform for generating images. The app is easy to use for people who find ComfyUI hard to use, or just simply don’t have a GPU to use it on. For those not familiar, ComfyUI is a great tool for using open-source models like Stable Diffusion. It’s primarily great because it’s a node-based tool, which means you can chain together models, upscalers, prompting nodes, etc… which let you create images in the exact aesthetic you want. There’s also a vibrant dev community behind ComfyUI, which means that there are a ton of nodes and customizability. We’re users…

    2024 · its alternatives →

  21. 21

    Bitcoin made easy. Contribute to ofek/bit development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  22. 22CD

    Hi HN! This is a little site I put together while learning the Elm language as part of a hackathon at my work, I thought you might enjoy it. Be sure to click the `(source)` buttons next to the graphs: you can edit them interactively & write your own queries against the entire data set. The syntax isn't well documented yet, but you can probably get the general idea pretty quickly based on the examples there. If you like it, have questions, etc. let me know! If folks think this is cool, maybe I can get it turned into a legit project. :)

    2022 · codestat.dev · its alternatives →

  23. 23

    Greetings! A 2.5 weekends project to teach myself newer Python features (>= 3.10). Conditions are written as Lambda expressions that annotate parameters and return types, and coexist with type annotations. Symbols to share values between conditions are also supported to a limited extend.

    2022 · github.com · its alternatives →

  24. 24

    Free Coding editor for schools: P5, Python, Java, R, HTML...

    Jun 2026 · trinket.strivemath.org · its alternatives →

Also compare

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 →