VACE Video Joiner — Seamlessly Merge Video Clips with AI
Seamlessly join multiple video clips into one with AI-powered scene matching, automatic color grading alignment, and smooth transitions — all through a simple API call.
AI-Powered Video Joining
VACE Video Joiner intelligently merges clips with scene-aware transitions, automatic color matching, and batch processing on WaveSpeed.
Scene Continuity Matching
AI analyzes the ending frames of one clip and the opening frames of the next, ensuring seamless visual continuity. Motion trajectories, lighting, and composition are matched automatically for professional-grade joins.
Automatic Transitions & Color Grading
Smooth cross-fades, dissolves, and cuts are applied intelligently based on scene content. Color grading is automatically aligned across clips so the final output looks like a single, cohesive video.
Batch Processing at Scale
Join dozens of clips in a single API call. Queue multiple join jobs simultaneously with automatic load balancing. Perfect for content pipelines, social media automation, and video production workflows.
VACE Video Joiner vs. Manual Video Editing
See why teams choose VACE Video Joiner on WaveSpeed over manual editing tools.
Performance at a Glance
VACE Video Joiner on WaveSpeed delivers fast, reliable video merging at scale.
Examples
Young woman turning to smile at camera, breeze catching her scarf, soft bokeh background.
Dancer performing a graceful pirouette, flowing dress creating motion trails, spotlight.
Butterfly emerging from chrysalis in close-up, wings slowly unfurling, soft natural light.
Detective walking through foggy city streets, trench coat collar up, film noir atmosphere.
Integrate in Minutes
Production-ready SDKs for Python and JavaScript. REST API with full OpenAPI spec. Webhook support for async jobs.
- Scene-aware AI transitions between clips
- Automatic color grading alignment
- Python & JavaScript SDKs + REST API
Get Any Tool You Want
1000+ models across image, video, audio, and 3D — all through one API.
FAQ
VACE Video Joiner is an AI-powered tool that seamlessly merges multiple video clips into a single cohesive video. It automatically handles scene matching, color grading alignment, and smooth transitions via a simple API call.
You can join 50+ clips in a single batch request. The API supports queuing multiple join jobs simultaneously with automatic load balancing for high-throughput production workflows.
Yes. VACE Video Joiner maintains source quality throughout the joining process. Output supports up to 4K resolution with no quality degradation at join points.
VACE Video Joiner supports all major formats including MP4, WebM, MOV, and AVI. Input clips can be in different formats — the system handles format normalization automatically.
The AI analyzes the final frames of one clip and the opening frames of the next, evaluating motion trajectories, lighting conditions, and composition. It then selects and generates the optimal transition type — cross-fade, dissolve, or matched cut — for seamless visual continuity.