nowfound

Dev tools · alternatives · 2026

24 alternatives to Bounding Box Labeler GUI (OpenCV and Python)

Label images and video for Computer Vision applications - Cartucho/OpenLabeling

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Bounding Box Labeler GUI (OpenCV and Python) launched in 2018; newer entries below may have overtaken it.

  1. 1

    Label images and video for Computer Vision applications - Cartucho/OpenLabeling

    2018 · github.com · its alternatives →

  2. 2

    Make drawing and labeling bounding boxes a piece of cake - shoumikchow/bbox-visualizer

    2020 · github.com · its alternatives →

  3. 3

    An easy way to create and manage training data

    2019 · labelbox.com · its alternatives →

  4. 4

    Open-Source Bounding Box Tool for Fast, Flexible Annotation.

    2025 · its alternatives →

  5. 5

    Manage your computer vision data labeling

    2024 · labelyourdata.com · its alternatives →

  6. 6

    A Blender addon for generating synthetic ground truth data for Computer Vision applications - GitHub - Cartucho/vision_blender: A Blender addon for generating synthetic ground truth data for Computer Vision applications

    2020 · github.com · its alternatives →

  7. 7

    Annotate images with ease. Export to any format.

    2021 · roboflow.com · its alternatives →

  8. 8

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

    2020 · github.com · its alternatives →

  9. 9

    Open source data labelling platform for AI model tuning

    2023 · labelstud.io · its alternatives →

  10. 10

    Simple link based API to draw box & cuboid labels on images

    2021 · its alternatives →

  11. 11

    Browser-based image + XML bounding box editor

    Dec 2025 · its alternatives →

  12. 12

    Improve your machine learning models by curating your data

    2020 · its alternatives →

  13. 13

    Build and share delightful machine learning apps, all in Python. 🌟 Star to support our work! - gradio-app/gradio

    2020 · github.com · its alternatives →

  14. 14

    Pre-trained computer vision models and public datasets

    2021 · universe.roboflow.com · its alternatives →

  15. 15

    We built Vision AI Label Studio, a modern, offline-first, open-source image labeling app. It supports: - Manual annotations (boxes, polygons, lasso) - AI-assisted labeling via YOLOv8 - Multi-format export (COCO, Pascal VOC, YOLO, JSON) - Full-featured desktop + web versions - Built with React, Tailwind, Dexie.js No cloud dependency. Works 100% locally and offline. GitHub: https://github.com/vailabel/vailabel-studio Docs + Demos: https://vailabel.com/ Would love feedback and contributions!

    2025 · vailabel.com · its alternatives →

  16. 16
    Cord▲170

    Automating data annotation for computer vision

    2021 · encord.com · its alternatives →

  17. 17

    Supercharge vision model training with auto object detection

    2023 · try.labellerr.com · its alternatives →

  18. 18

    Turn food labels into Open Blockchain data and earn Crypto

    2024 · wireshape.com · its alternatives →

  19. 19

    Multi-object trackers in Python. Contribute to adipandas/multi-object-tracker development by creating an account on GitHub.

    2019 · github.com · its alternatives →

  20. 20
    BoxHero▲92

    Design and print free labels — no drivers, no setup.

    2019 · boxhero.io · its alternatives →

  21. 21AD
  22. 22

    This tool uses OpenCV to automatically synchronize slides with videos that show these slides. - slideo/README.md at master · hediet/slideo

    2021 · github.com · its alternatives →

  23. 23
    Imagga▲105

    Image recognition platform-as-a-service

    2014 · imagga.com · its alternatives →

  24. 24

    Labeling Has Never Been Easier

    2025 · 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 →