For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
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GuidesIntegrationsAPI ReferencesRelease notes
GuidesIntegrationsAPI ReferencesRelease notes
  • Introduction
    • Overview
    • Quick Start
    • Projects
    • Billing
  • Uploading
    • Overview
      • Overview
      • Installation
      • HTML forms
      • Built-in image editor
      • Security settings
      • Breaking changes
    • Uploading files with API
    • File analysis on upload
  • Optimization
    • Overview
  • Transformations
  • Delivery
    • Overview
    • On-the-fly operations
    • CDN settings
    • Proxy
  • Security
    • Overview
    • Validation and moderation
    • Signed uploads
    • Signed URLs
    • Unsafe content moderation
    • Malware protection
    • HIPAA workflows
  • Storage
    • Uploadcare storage
    • Cloudflare R2
    • Google Cloud Storage
    • Azure Blob Storage
  • File management
    • Overview
    • Managing files
    • File groups
    • Webhooks
    • Arbitrary file metadata
  • CLI
    • Overview
    • Configuration
  • Migration
    • Migration to Uploadcare
    • Migration from Filestack
  • Overview
  • Quick Start
  • Projects
  • Billing
  • Overview
  • Overview
  • Installation
  • Configuration
  • Options
  • Image shrink
  • Upload sources
  • Localization
  • Styling
  • Accessibility
  • Dynamic button
  • File Uploader API
  • Events
  • Overview
  • File validators
  • Collection validators
  • Localization
  • Overview
  • Plugin structure
  • Extension points
  • Icons & Translations
  • Runtime API
  • Activity UI
  • Complete example
  • Built-in plugins
  • HTML forms
  • Built-in image editor
  • Security settings
  • Breaking changes
  • Overview
  • Options
  • Overview
  • Widget reference
  • Uploading files
  • File groups
  • File validation
  • Upload dialog and panel
  • Handling custom tabs
  • Controlling drag and drop
  • Widget tabs styling
  • Widget initialization
  • File validation
  • Image editor
  • Security settings
  • Uploading files with API
  • File analysis on upload
  • Overview
  • Compression
  • Responsive images
  • Adaptive image component
  • Adaptive bitrate streaming
  • Overview
  • Resize, crop, rotation
  • Overlays and watermarks
  • Effects and enhancements
  • Face-detection based transformations
  • SVG transformations
  • Background removal
  • Baked transformations
  • Object recognition
  • Video processing
  • File conversion
  • Gif to video conversion
  • Overview
  • On-the-fly operations
  • CDN settings
  • Proxy
  • Overview
  • Validation and moderation
  • Signed uploads
  • Signed URLs
  • Unsafe content moderation
  • Malware protection
  • HIPAA workflows
  • Uploadcare storage
  • Direct uploads to S3
  • Copy files to S3
  • Backup files to S3
  • Cloudflare R2
  • Google Cloud Storage
  • Azure Blob Storage
  • Overview
  • Managing files
  • File groups
  • Webhooks
  • Arbitrary file metadata
  • Overview
  • Configuration
  • File operations
  • CI/CD and automation
  • Output and scripting
  • File and metadata
  • Groups
  • Projects
  • Convert, add-ons, and more
  • Migration to Uploadcare
  • Migration from Filestack
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UploadingFile Uploader

File Uploader migration guides

Breaking changes are introduced in the following versions. Please refer to the migration guides to update your code:

  • v1.29.0
  • v1.26.0
  • v1.x
  • v0.49.0
  • v0.47.0
  • v0.45.0
  • v0.44.0
  • v0.40.0
  • v0.39.0
  • v0.38.0
  • v0.32.0
  • v0.25.0
Versions until 1.x don’t follow SemVer.
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