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Tech riderRev. 21 Sept 2026

LabelMe

Ch 146.0of 24 AI Image Annotation Tools
  1. 1Runs onLinux, self-hosted, Web, Windows
  2. 2CostsNot stated by the maker
  3. 3Annotation typespolygon, scribble, mask
  4. 4AI-assisted labelingNo
  5. 5Export formatsXML
  6. 6API accessYes
  7. 7Deploymentself-hosted
6 lines stated Written from the maker's own pages: labelme.csail.mit.edu
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Overview

LabelMe is ranked #14 of 24 in AI image annotation tools on Specifiction. It runs on Linux, Self-hosted, Web, Windows.

Compared on AI image annotation tools

Free plan
Yeslabelme.csail.mit.edu
Annotation types
polygon, scribble, masklabelme.csail.mit.edu
AI-assisted labeling
Nolabelme.csail.mit.edu
Export formats
XMLlabelme.csail.mit.edu
API access
Yeslabelme.csail.mit.edu
Deployment
self-hostedlabelme.csail.mit.edu

Facts

Purpose
LabelMe is a web-based image annotation tool for researchers to label images and share annotations.people.csail.mit.edu · 7 Oct 2026
Image annotations
The tool supports creating and editing polygons, with URL options to rename objects, modify polygon control points, delete objects, or view polygons without editing.github.com · 7 Oct 2026
Labeling modes
URL options include a Mechanical Turk mode and modes for moving to the next image in a folder, a random image, or the next image in a collection.github.com · 7 Oct 2026
Collections
A command-line script can create image collections from all images or from a specified folder.github.com · 7 Oct 2026
Data export
Annotations are saved as XML files, and the page describes downloads through a MATLAB toolbox or tar files.people.csail.mit.edu · 7 Oct 2026
Server requirements
The setup instructions require Apache, server-side includes, and Perl/CGI support.github.com · 7 Oct 2026
Image file constraint
The quick start instructions specify .jpg images and folder and file names containing alphanumeric characters without spaces or unusual characters.github.com · 7 Oct 2026
Storage permissions
The web server needs read permission for images and write permission for annotation and temporary annotation folders.github.com · 7 Oct 2026
Dataset access
The MATLAB toolbox can download the dataset or access online images and annotations directly; the page says online access may be slow.people.csail.mit.edu · 7 Oct 2026
License
The repository lists an MIT license.github.com · 7 Oct 2026
Project attribution
The repository credits the MIT Computer Science and Artificial Intelligence Laboratory.github.com · 7 Oct 2026
Download
The source code is available as a zip download or through the GitHub repository.github.com · 7 Oct 2026
Annotations
The tool saves annotations in an Annotations folder and supports scribble mode with masks and scribbles.github.com · 7 Oct 2026
Configuration
URL options can select images and collections, set a labeling username, restrict available actions, and supply a dropdown list of object names.github.com · 7 Oct 2026
Mechanical Turk
The tool has a Mechanical Turk mode with options for sandbox testing, minimum polygon counts, and custom worker instructions.github.com · 7 Oct 2026
Output format
Annotation file layouts can be changed by editing an XML template for a collection.github.com · 7 Oct 2026
Logging
The tool records its actions in annotationCache/Logs/logfile.txt, which must be writable by the server.github.com · 7 Oct 2026
Security and permissions
Setup instructions require readable image files and writable annotation and temporary annotation folders on the web server.github.com · 7 Oct 2026
Intended use
The repository categorizes the tool under annotation and computer vision.github.com · 7 Oct 2026

Company

Founded
2005labelme.csail.mit.edu · 28 Sept 2026
Headquarters
Cambridge, Massachusetts, United Stateslabelme.csail.mit.edu · 28 Sept 2026

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Sources