Dev tools · alternatives · 2026
24 alternatives to Free DSA Learning Hub
Built this because I kept needing a quick sprite sheet tool while working on side projects and everything either required a download or had a paywall. It runs fully in the browser, no upload to a server, no login. Supports: - Packer mode: upload separate frame PNGs, reorder them, export as atlas + JSON - Slicer mode: upload an existing sheet, define rows/columns, split into frames - JSON metadata compatible with Phaser, custom WebGL renderers etc. Works with Unity and Godot workflows too. Would love feedback on what's missing.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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For the past three years I've been building what I hope will be the next Blender, tackling the lack of any good 2D design or image editing tools outside the Adobe monopoly. This was our first year participating in Google Summer of Code and this Q3 update includes the big payoff from that, covering the most progress we've made so far as a project. If you're a Rust dev, consider getting involved as we apply for the next GSoC in the new year— you could be our intern next summer :) Q3 progress report: https://graphite.rs/blog/graphite-progress-report-q3-2024/
2024 · graphite.rs · its alternatives →
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A multi-threaded, GPU-powered, 2D vector graphics environment for Node.js - samizdatco/skia-canvas
2020 · github.com · its alternatives →
- 3
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 →
- 4CP
Hi HN! 2d spritesheets for game development are often distributed as a PNG image, sometimes with a separate JSON or XML metadata document describing the layout, including any animation sequences within the sheet. Sometimes there is no metadata document and you have to work it out and manually write custom code to chop up the spritesheet and reference the sprites you want. I think it would be good if it became standard practice to distribute spritesheet PNGs with the metadata inline inside a PNG "chunk" so the whole thing is self-contained. That way artists can just distribute one file, and…
2019 · mccormick.cx · its alternatives →
- 5DA
Dear HN, I am Riwaj, the cofounder of dstack.ai (https://github.com/dstackai). A few months ago, we built an online service that allows users to publish data visualizations from Python or R. The idea was to build a tool that did not require additional programming or front-end development for publishing data visualizations. Such a code can be invoked from either Jupyter notebook, RMarkdown, Python, or R scripts. Once the data is pushed, it can be accessed via a browser. Open-sourcing dstack: During our customer discovery phase, we realized that dstack.ai should integrate a lot…
2020 · its alternatives →
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Here's a project I've been working on for a little while now. Ripl is a JS library that provides a unified API for rendering shapes on both canvas and SVG interchangeably. Over the years I've used D3 extensively to create data visualisations so I figured I'd have a go at making my own version with a slightly more modern API and stricter TypeScript support. I am aware there are already libraries that can draw to multiple contexts interchangeably, but I've added a few little niceties to Ripl that (as far as I know) some other libraries don't have such as CSS-like query selectors, DOM-like…
2024 · github.com · its alternatives →
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IMAGEAT AI▲28I built a small free tool that converts images into structured JSON output. The idea is simple: upload an image, and the tool tries to extract its visual/content information into a clean JSON format that can be used for further processing, automation, or AI workflows. This started as a side project to speed up my own experiments with image analysis and prompt pipelines. There’s no login, no paywall, and it runs entirely in the browser. I’m sharing it here mainly to get feedback: Does the output structure make sense? What use cases would you expect from something like this? Anything…
2025 · imageat.com · its alternatives →
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Built for Students, No Signups. No Paywalls. Just Learning.
Oct 2025 · codevisualizer3d.vercel.app · its alternatives →
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Free, local-only sprite sheet & texture atlas toolsuite.
Mar 2026 · ilovesprites.com · its alternatives →
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Interactive Data Structure & Algorithm Visualizerr
2025 · dsavisualizer.in · its alternatives →
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Hi HN, We're a small team working on a new dataviz engine and its applications. We built our charting engine in C++ and run it on WebAssembly. Two years ago, we launched Vizzu as an open-source animated data visualization library aimed at JS developers, allowing users to create dynamic charts. We also released a Python wrapper under the name ipyvizzu for data scientists. Since then, we've been working hard to make this technology accessible to everyone, regardless of their coding skills. Today, we're proud to introduce our no-code storytelling tool. With this tool, anyone can turn their…
2024 · vizzu.io · its alternatives →
- 13WV
Hey everyone, my friend and I created a GitHub Wrapped video for developers to showcase their activity on the platform in a more fun way. The implementation is open-source (https://github.com/rendleyhq/github-wrapped-2024) if you're interested in how it was built. To get a bit geeky, we used masks, keyframe animations, luma key shaders to remove the background from the confetti video, and some other techniques. Also, everything is rendered directly in the browser!! I'm curious to hear your thoughts on the rendering performance, especially if you're running this on your…
2024 · rendley.com · its alternatives →
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- 15E
Hello everyone, A couple of months ago I was introduced to Excalidraw and fell in love with it instantly. The only thing I didn't like was that I couldn't easily save my whiteboards and had to put everything in one whiteboard which started to lag my PC after a while. So I made ExcaliHub. It's exactly as it sounds: a hub for Excalidraw. It's free, open source, and I aim to keep it that way. Thanks in advance for any feedback!
2024 · excalihub.dev · its alternatives →
- 16
DSAVInc▲1Interactive data structures & algorithms learning platform
2025 · dsavinc.netlify.app · its alternatives →
- 17
I’m a 17-year-old indie game developer. I use Blender for modeling, but I was dissatisfied with the workflow of importing materials from Blender to Unity. I couldn’t find any free tools that met my requirements, and I couldn’t afford the paid ones—so I created my own Blender extension to simplify the process. I ended up building this extension far beyond my original needs. Features include: 142 texture bake types Atlas baking / Bake multiple objects into one texture Channel packing up to 4 channels Invert textures Bake from high poly to low poly Unity importer with custom shader support…
Jul 2026 · superhivemarket.com · its alternatives →
- 18
process demo - https://i.redd.it/fbhlwsq1gcmg1.gif render demo - https://i.redd.it/smddwtryhcmg1.gif I love making creative software. I spent a few years making pixel art software but recently have gotten into 3d animation and 2d animation and really wanted a way to realize crazy ideas. Blockbench didn't feel quite right, spline is super well made but felt catered too much to just idle website animations, and I really didn't want to fall down a master class in Blender just to make some silly stuff. While I'm definitely not discounting Blender's literal…
Mar 2026 · app.topomaker.com · its alternatives →
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Interactive Visualizations for Learning DSA
Jun 2026 · dsasimulator.com · its alternatives →
- 22
SVG Weave▲14Hey HN, I'm a solo dev and I kept wasting hours hand-writing CSS @keyframes to animate SVGs. Write a keyframe, preview, tweak the timing, preview again, repeat. For anything beyond a simple fade it turns into dozens of rules across multiple elements. I wanted something where I could just describe the motion and get working animations back. SVG Weave is a visual node graph editor for this. You place nodes on a canvas (SVG input, prompt, render) and connect them with wires. Type what you want the animation to do, hit render, and the AI streams CSS @keyframes back in real time. You see the SVG…
Feb 2026 · svgweave.com · its alternatives →
- 23AL
Interested to hear bugs reports & feature ideas!
2011 · spritecow.com · its alternatives →
- 24
Hey HN! Over the past few weeks, I’ve been working on DataBridge, an open-source solution for data ingestion and querying across text, PDFs, images, and videos. In our latest update, we’ve added a fully local deployment option: - No internet required – Runs entirely offline. - Customizable Models – Supports any LLM and embedding model via Ollama (with options for any other private providers) - Extensibility – You can plug in your own models or tools easily. This local-first approach ensures better privacy, security, and flexibility, especially for teams dealing with sensitive data. You can…
2025 · github.com · its alternatives →
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- dstack – an open-source tool to build data applications easily alternatives
- A JavaScript library for data visualization in both SVG and Canvas 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 →