Captures screenshots and JSON from Label Studio/CVAT on save actions
Users
20
−3 in 30 days
Rating
4.2 / 5
unchanged in 30 days
Ratings
5
0 in 30 days
Store rank
#150K
#125K among extensions
Version
1.0.0
updated 20 Jan 2026
Users
monthly, 9 months
Latest, 16 Oct 2026:20 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
Latest, 16 Oct 2026:5 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About LexAnnotate Extension
LexAnnotate Extension - Chrome Web Store Description
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SHORT DESCRIPTION (132 characters max):
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Capture screenshots and annotation data from Label Studio, CVAT, Roboflow, and custom annotation tools with one click.
DETAILED DESCRIPTION:
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LexAnnotate Extension is a powerful productivity tool designed for data annotation professionals, machine learning engineers, and computer vision teams. It seamlessly captures screenshots and annotation data from popular annotation platforms.
KEY FEATURES:
• One-Click Capture
Automatically capture screenshots and annotation JSON data when you save your work in annotation tools.
• Multi-Platform Support
Works with popular annotation platforms:
- Label Studio
- CVAT (Computer Vision Annotation Tool)
- Roboflow
- LexAnnotate.ai
- Custom annotation tools (configurable)
• Automatic Data Extraction
Intelligently extracts bounding boxes, labels, polygons, and other annotation data in a standardized JSON format.
• Cloud Sync
Upload captured data directly to LexAnnotate.ai backend for centralized storage and team collaboration.
• Admin Controls
- Add custom domains/IP addresses for local development servers
- Configure server endpoints
- Monitor upload history and statistics
• Secure Authentication
Role-based access control with user, admin, and superadmin roles powered by secure authentication.
• Local Downloads
Save screenshots (JPEG) and annotation data (JSON) locally for backup and offline access.
HOW IT WORKS:
1. Install the extension and login with your LexAnnotate account
2. Navigate to your annotation platform (Label Studio, CVAT, etc.)
3. Create or edit annotations as usual
4. Click "Save" or press Ctrl+S - the extension automatically captures your work
5. Screenshots and JSON data are saved locally and uploaded to the cloud
USE CASES:
• Quality Assurance - Review annotation work with visual snapshots
• Version Control - Track annotation changes over time
• Team Collaboration - Share annotation progress with team members
• Backup & Recovery - Keep local copies of your annotation work
• Training Documentation - Create visual records of annotation guidelines
PERMISSIONS EXPLAINED:
• Downloads - Save screenshots and JSON files locally
• Storage - Store authentication tokens and settings
• Tabs - Detect which annotation platform you're using
• Scripting - Inject capture functionality into annotation pages
• ActiveTab - Capture screenshots of the current tab
PRIVACY & SECURITY:
• Your annotation data is only captured when you explicitly save
• Data is encrypted during transmission
• No data is collected from non-annotation websites
• Domain whitelist ensures capture only works on approved platforms
SUPPORT:
For help, feature requests, or bug reports:
• Website: https://lexannotate.ai
• Documentation: https://lexannotate.ai/docs
REQUIREMENTS:
• Google Chrome (version 88 or later)
• LexAnnotate.ai account for cloud sync features
• Works offline for local capture functionality
VERSION HISTORY:
v1.0.0 - Initial Release
• Support for Label Studio, CVAT, Roboflow, LexAnnotate.ai
• Screenshot and JSON capture
• Cloud upload to LexAnnotate.ai
• Admin panel for domain management
• Role-based authentication
CATEGORY: Productivity
TAGS: annotation, machine learning, computer vision, label studio, cvat, roboflow, screenshot, data labeling, AI, ML, image annotation