Video annotation tool

Precision video annotation for real-world AI systems

Handle long, heavy video with frame-accurate tracking, keyframe interpolation, and AI pre-labeling that keep annotations consistent across every clip.

Video annotation capabilities

High-performance video

Smooth processing of heavy files with no lag when scrubbing frames in large projects.

Object interpolation

Predicts an object's position between keyframes to speed up video annotation.

Timeline & visibility control

Precisely mark when objects appear, disappear, or are temporarily occluded.

ML-assisted tracking

AI attaches annotations to moving objects and keeps boxes and polygons stable.

Track ID management

Keeps a unique ID even after an object briefly leaves the frame.

A-Z order

Dynamic layer management for objects that intersect or partially overlap.

Attributes interpolation

Removes manual metadata entry on every in-between frame, saving time.

Video annotation types

bbox.mp4 Live preview

Bounding box

Rectangular boxes that follow objects from frame to frame.

Industries

Pricing

Flexible plans with bundles and volume discounts. On a short demo call we scope your project and find the right fit.

Custom solution? hello@keylabs.ai