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Dev tools · alternatives · 2026

24 alternatives to ziltag - open source

A simple & clean image annotation tool for developers

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ziltag - open source launched in 2017; newer entries below may have overtaken it.

  1. 1
    Ziltag▲113

    Turn your images into interactive discussion tool.

    2016 · ziltag.com · its alternatives →

  2. 2
    Zimage▲185

    The fastest, free image service for developers

    2016 · its alternatives →

  3. 3

    Every open source icon on the internet, tagged & optimized

    2021 · iconshock.com · its alternatives →

  4. 4
    ogsupa▲105

    An open-source open graph image generator

    2021 · github.com · its alternatives →

  5. 5

    Hi HN, I built a tool for teaching LLMs how to extract structured data from documents by annotating, not prompt engineering. I’d love your feedback. How it works: - Upload a document (DOCX, PDF, image, etc.) - Select and tag parts of it (supports nesting, arrays, custom tag structures) - Upload another document → click "predict" → see editable annotations - Amend them and save as a new example - Call the API with a third document → get JSON back Use cases: - Identify "important clauses" in contracts - Extract "total value" from invoices - Anything subjective, like "healthy ingredients" on a…

    2025 · deeptagger.com · its alternatives →

  6. 6

    Annotate images with ease. Export to any format.

    2021 · roboflow.com · its alternatives →

  7. 7

    Open source image recognition to fetch hashtags from images

    2018 · play.google.com · its alternatives →

  8. 8
    ZenCtrl▲173

    Framework to generate multi-view images

    2025 · fotographer.ai · its alternatives →

  9. 9

    The text annotation tool for teams

    2020 · talperry.com · its alternatives →

  10. 10

    Like Buffer, but for Images

    2015 · viraltag.com · its alternatives →

  11. 11
    OG IMPACT▲175

    A free, open source API for generating social media images

    2020 · ogimpact.sh · its alternatives →

  12. 12

    A label tool aim to reduce semantic segmentation label time, rectangle and polygon annotation is supported - andywang0607/AutoAnnotationTool

    2020 · github.com · its alternatives →

  13. 13

    Instantly jump to your ag or ripgrep matches. Contribute to aykamko/tag development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  14. 14
    Zyl▲132

    AI-powered photo app with a privacy by design approach

    2017 · its alternatives →

  15. 15

    An easy opengraph image generator that gives you meta links

    2021 · og-image.xyz · its alternatives →

  16. 16

    Organize Github projects and files with tags

    2015 · chromewebstore.google.com · its alternatives →

  17. 17

    Hello HN! I want to share something me and a few friends have been working on for a while now — Zeroshot, a web tool that builds image classifiers using text-image models and autolabeling. What does this mean in practice? You can put together an image classifier in about 30 seconds that’s faster and more accurate than CLIP, but that you can deploy yourself however you’d like. It’s open source, commercially licensed, and doesn’t require you to pay anyone per API call. Here's a 2 minute video that shows it off: https://www.youtube.com/watch?v=S4R1gtmM-Lo How/why does it…

    2023 · usezeroshot.com · its alternatives →

  18. 18
    Gradtag▲75

    Machine learning tag generator for blogs & articles

    2016 · its alternatives →

  19. 19

    Free filters to make delicious photos look even better!

    2016 · github.com · its alternatives →

  20. 20

    Free Open Graph Image & Meta Tags Generator & Previewer

    2025 · its alternatives →

  21. 21

    Hello! I'm building a typescript based frontend package to tag/categorize any form of textual input. Straight to the demo -> https://open-taggy.github.io/demo/ Project focus: - lightweight (frontend package without any backend server stuff) - easy integration (currently npm/vanilla, frameworks to come) - free and open source It works on the basis of a pre-defined list of trigger words (glossary). With this approach there is no need for any external services or heavy backend/ML-things.

    2023 · github.com · its alternatives →

  22. 22

    Industry-Specific Images and Tags Organization

    2025 · its alternatives →

  23. 23

    Seo and Image Free Tool

    Jul 2026 · zyptool.com · its alternatives →

  24. 24

    AI-powered image generation & editing for creators

    Jan 2026 · zimagebase.io · 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 →