Everything you need to manage, review, and understand your media.
Media management and AI tools designed to work together - upload anything, get instant AI analysis, collaborate with your team, and export for any workflow.
Upload Anything. Organize Everything.
Over 30 file formats across images, video, audio, and documents. Every file is AI-processed and searchable the moment it lands.
Multi-Format Upload
Drag and drop images (JPEG, PNG, WebP, TIFF, BMP, GIF), video (MP4, WebM, MOV), audio (MP3, WAV, FLAC, M4A, OGG), PDFs, and documents. Bulk upload hundreds of files at once. Every format gets full AI processing - no second-class file types.
High-Resolution Viewer
View gigapixel images without lag. Our OpenSeaDragon-powered viewer generates multi-resolution tiles automatically, so even massive architectural renders and high-res photography load instantly at any zoom level. Pan, zoom, and annotate without waiting.
Organization Hierarchy
Structure your workspace the way your team actually works. Organizations contain Departments, which contain Libraries - each with its own access controls, automation rules, and captioning prompts.
Version Tracking
Every upload is tracked. Upload a new version and compare side-by-side with previous iterations. Markups and comments are scoped to the version they were created on, so your latest version starts clean.
Smart Search
Two search modes working together. Semantic search finds media by meaning, while keyword search covers titles, descriptions, tags, and transcripts. The system tries semantic first, then falls back to keyword.
Duplicate & Similarity Detection
AI-powered visual similarity search identifies near-duplicate images across your libraries. Essential for keeping brand assets clean and training datasets free of redundant data.
Feedback That Lives Where the Work Is.
Stop describing what you mean. Click on it. Every annotation is pinned to exact coordinates, timecodes, or page locations so reviewers know precisely what you are talking about.
Markups - Pinpoint Annotations
Click anywhere on an image or PDF to drop a color-coded markup pinned to that exact x/y coordinate. On audio, pin to a timecode. Each markup has a completion checkbox and its own comment thread for discussion.
Audio Review with AI Transcription
Upload any audio file and get an automatic transcript with speaker detection. Word-level timestamps with karaoke-style highlighting let you follow along as audio plays. Drop timecode markups at specific moments.
Video Review
Scrub to any frame and leave comments tied to that exact moment. AI transcription runs automatically on every video, making dialogue searchable. Full playback controls with frame-by-frame navigation.
Comments & Discussions
General comments live at the media level for broad feedback and discussion. @mention teammates to pull them into the conversation instantly.
Custom Ratings & Voting
Build custom rating scales for any review workflow. Thumbs up/down voting for quick curation and aggregate ratings across reviewers for data-driven decisions.
Sharing with Granular Permissions
Generate share links with fine-grained access control. Choose whether external reviewers can comment, vote, rate, or just view. Anonymous access is available for public reviews.
From Upload to Approval, On Autopilot.
Customizable pipelines that match how your team actually works. Define statuses, transitions, approval gates, and automation rules, then let the system handle the routing.
Kanban Board
Visualize every asset's status at a glance. Custom status columns with color coding and SLA timers. Drag and drop media between lanes and filter by assignee, department, or due date.
Approval Gates
Attach approval requirements to any status transition. Configure how many approvals are needed, which roles can approve, whether specific people must sign off, and whether self-approval is allowed.
Transition Rules
Define which status-to-status moves are allowed and who can make them. Require a comment, block skipped review steps, and enforce your process automatically.
Automation Rules
Set up rules that trigger automatically when something happens. Combine triggers, conditions, and actions to automate your entire review pipeline.
Assignments & SLAs
Assign media to specific team members with due dates. Set SLA targets per status lane and surface overdue items before they get missed.
Per-Library Configuration
Each library can have its own AI models, caption prompts, workflow, and default starting status. Set it once and every upload follows the rules automatically.
Self-Hosted AI That Actually Understands Your Media.
Every AI feature runs on our infrastructure. No OpenAI. No Google. No third-party API calls. Your media is processed by self-hosted, uncensored models - private, accurate, and fast.
Multi-Model AI Captioning
Automatic image captioning using self-hosted vision models. Customize the captioning prompt per library so every upload gets described in the style your workflow needs.
AI Auto-Crop & Object Detection
YOLO Everything detects and labels objects automatically, while SAM3 generates segmentation masks. Together they power dataset-ready bounding boxes, labels, masks, and subject crops.
Quality Analysis
Automatic blur detection scores every image on focus quality, and NSFW classification flags sensitive content for moderation workflows. Every image gets analyzed on upload.
Audio & Video Transcription
Whisper-powered transcription with speaker labels and word-level timestamps works across both audio and video files, enabling searchable dialogue and playback-linked review.
BlindAssist - Free Accessibility Tool
Generate detailed accessibility descriptions for any image - free, no account required. Originally built for the blind and visually impaired community, it remains a first-class public tool.
Training Data Export
Export production-ready datasets in the formats your training tools actually expect: image and caption pairs, JSONL, CSV, and native formats for Kohya_ss, AI Toolkit, SimpleTuner, and EveryDream.
Connects to the Tools You Already Use.
Native integrations, automation platforms, and a full API keep Captionator.AI in sync with your existing workflow.
REST API & MCP Server
Full programmatic access to upload, search, manage, and export media. The MCP server lets AI assistants interact with your media library directly. In development and targeted for launch.
Zapier, Make & N8N
Connect Captionator.AI to thousands of apps through automation platforms. Trigger actions when media is uploaded, approved, or status changes.
ComfyUI Nodes
Custom nodes for ComfyUI that integrate directly into your generation workflow. Caption images, upload generated media with metadata, and keep your VRAM focused on generation. In development and targeted for launch.
Slack Integration
Get notifications in Slack when media needs attention and share previewable links back into your existing team workflow.
See it in action.
Start free with up to 3 users. No credit card required. Upload your first file and watch the AI go to work.