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Dev tools · alternatives · 2026

24 alternatives to Grafly.io – Free online diagramming tool

Hey, I'm Nenad. I built Grafly (https://grafly.io) because I kept reaching for different tools just to sketch out a quick architecture diagram and hating either the UI, color schemes, usage patterns or that I had to log in, or have my doodles stored on someone's server. It's a React/React Flow app that runs entirely in the browser meaning that everything saves to localStorage, nothing leaves your machine. You get basic shapes, AWS/GCP icons, edges with waypoints and shareable URLs that encode the whole diagram in the query string (no backend, just LZ compression). There…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Build 3D interactions visually, without writing any code

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

  2. 2

    Many JS libraries exist to build graphs on the web (Vega, chartJS, Plotly...). They allow to make charts quickly. But you lose flexibility: you're limited by the options they offer. I just created a gallery with hundreds of graphs made with d3.js and React. - Examples are split by graph types - They all come with explanation and code sandboxes - Gradual complexity to ease the learning curve It took me ages to create this project! Feedback welcome!

    2023 · react-graph-gallery.com · its alternatives →

  3. 3
    Grafiti▲184

    The search engine for graphs and charts - on the web & Slack

    2019 · its alternatives →

  4. 4

    Hi HN! For the past bit we’ve been building Flowglad (https://flowglad.com) and can now feel it’s just gotten good enough to share with you all: Repo: https://github.com/flowglad/flowglad Demo video: https://www.youtube.com/watch?v=G6H0c1Cd2kU Flowglad is a payment processor that you integrate without writing any glue code. Along with processing your payments, it tells you in real time the features and usage credit balances that your customers have available to you based on their billing state. The DX feels like React, because we wanted to bring…

    Nov 2025 · github.com · its alternatives →

  5. 5

    Design and build web animations and interactions

    2017 · its alternatives →

  6. 6

    React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable. - xyflow/xyflow

    2021 · github.com · its alternatives →

  7. 7

    Use Webflow to build React & Web components visually

    2023 · its alternatives →

  8. 8

    In the past I've used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization. Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions. The project is certainly in the early stages but if you find yourself making architecture diagrams I'd love to hear your thoughts on the idea or even a Github issue for a feature…

    Oct 2025 · github.com · its alternatives →

  9. 9
    Quest AI▲294

    Convert napkin drawings into React components or Apps w/ AI

    2023 · its alternatives →

  10. 10

    Looking at websites such as Clerk, I began thinking that design engineers might be some kind of wizards. I wanted to understand how they do it, so I started reverse-engineering their components out of curiosity. One thing led to another, and I ended up building a small library of reusable, animated components based on what I found. The library is built in React and Framer Motion. I’d love to hear your feedback

    2025 · reverseui.com · its alternatives →

  11. 11
    Quarkly▲184

    Design tool to create sites & web apps on React

    2020 · quarkly.io · its alternatives →

  12. 12IB

    grafar is a JavaScript library for creating visualizations on the web, with 3D support via WebGL. Built for mathematical plotting, but also can also handle data visualization.

    2021 · thoughtspile.github.io · its alternatives →

  13. 13
    UXFlow▲265

    Free customizable flowchart kit for Sketch and Figma

    2017 · uxflow.co · its alternatives →

  14. 14

    user flows, ui flows, ux flows, toolkit, sketch, template

    2018 · uxmisfit.com · its alternatives →

  15. 15

    Portable, Serverless & Lightweight SQLite-based Graph Database in Arturo - drkameleon/grafito

    2021 · github.com · its alternatives →

  16. 16

    The smart infographics and visuals maker

    2021 · graficto.com · its alternatives →

  17. 17

    The minimal javascript library to create flowcharts ✨ - alyssaxuu/flowy

    2019 · github.com · its alternatives →

  18. 18

    My name is Alex, and I’m a co-founder and lead developer at Quarkly.io. Quarkly is a project made by our small team of designers and developers, aimed at helping similar teams. Our goal with Quarkly is to make the life and workflow of designer-developer pairs easier, allowing them to work both indep

    2020 · hackernoon.com · its alternatives →

  19. 19

    Generate functional apps and games from a sketch on paper

    2024 · its alternatives →

  20. 20SI
  21. 21

    The free Sketch to Code Framework

    2018 · sketch2react.io · its alternatives →

  22. 22

    As an indie hacker, I used to spend hours creating landing pages for my side projects and SaaS. So, in the past few months, I built Webifier.io. It converts prompts into full blown landing pages that are customized for you. This includes: animations, custom sections, etc. You can then export a clean React/Next project. Can’t wait to hear what you think!

    2024 · webifier.io · its alternatives →

  23. 23

    Hey HN, I built this tool because my personal diagramming workflow was broken, and I wanted to automate it. When creating diagrams, I have two conflicting needs. For logic and structure, I prefer Mermaid.js here. It’s deterministic, version-controllable, and lets me tweak the logic easily until it matches exactly what’s in my head. For aesthetics, I need the final result to look like a high-end infographic for presentations, which Mermaid (and standard tools) are bad at. Before Nanobanana Pro came out, AI image generation cannot generate good visual presentation for diagrams because it…

    2024 · diagram-generator.com · its alternatives →

  24. 24

    Contribute to davidmnoll/chkflow development by creating an account on GitHub.

    2021 · github.com · its alternatives →

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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 →