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Transform your videos with our powerful API. Trim, convert, add subtitles, overlay watermarks, and more. Simple pricing, powerful features.

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Professional Video Processing APILearn more →

Transform Your Videos
With Powerful APIs

Trim, convert, add subtitles, overlay watermarks, and more. Build amazing video experiences with our simple yet powerful API.

154,492,361
MB of videos processed

Popular tools

Video tools people search for most

Use browser tools for quick edits or link into the API for automation. Each tool maps directly to its keyword intent.

MP4 to GIF

mp4 to gif

Convert MP4 clips into shareable GIFs for demos.

Video to GIF

video to gif

Turn any supported video into a loopable GIF.

Video Converter

video converter

Convert video online to MP4, WebM, or GIF.

Video Trimmer

video trimmer

Trim a video online with simple start/end times.

Video Cutter

video cutter

Cut video clips quickly for highlights and reels.

Merge Videos

merge videos

Merge videos with optional audio and subtitles.

Developer First

RESTful API Endpoints

Clean, predictable endpoints that follow REST best practices. Powered by an FFmpeg API layer for async video processing, with JSON responses and helpful error messages.

Available Endpoints

POST/video/trim

Trim videos to specific start and end times

POST/video/convert

Convert between MP4, WebM, and GIF formats

POST/video/compose

Combine multiple videos, add audio or subtitles

POST/video/overlay

Add watermarks or text overlays

POST/video/thumbnail

Generate thumbnails, sprites, or animated previews

GET/video/probe

Get detailed video metadata

Example Response

200 OK
{
  "jobId": "550e8400-e29b-41d4-a716-446655440000",
  "status": "queued",
  "message": "Your video processing job has been queued.",
  "estimatedTime": 30,
  "creditsUsed": 15
}
View Full Documentation

Everything you need

Professional Video Processing Made Simple

Built for developers who need reliable, fast, and scalable video processing without the complexity.

Lightning Fast Processing

Powered by optimized FFmpeg instances, process videos in seconds not minutes.

Simple REST API

Clean, well-documented REST endpoints that are easy to integrate into any application.

Pay As You Go

Only pay for what you use. No monthly fees, just simple CPU-second based pricing.

Enterprise Security

Your videos are processed securely and deleted immediately after processing.

Rich Format Support

Support for all major video formats including MP4, WebM, MOV, AVI, and more.

Scale Infinitely

Built on cloud infrastructure that scales automatically with your needs.

Trusted by developers worldwide

Videos processed
10M+
API uptime
99.9%
Happy developers
5,000+

Frequently Asked Questions

Everything you need to know about VideoComposer

VideoComposer is a free online video composer that lets you merge, trim, convert, and watermark videos directly in your browser — no downloads or signup required. It also provides a REST API so developers can automate video composition at scale.

A video composition API lets developers programmatically merge, trim, overlay, and convert video files via HTTP requests — without a desktop editor or manual steps. VideoComposer provides a REST API that handles all core video composition operations, returning processed files asynchronously.

Send a POST request to the relevant endpoint (merge, trim, convert, or watermark) with your video file URLs and parameters. The API queues the job and returns a job ID. Poll the status endpoint or configure a webhook to retrieve the finished video URL when processing completes.

Browser tools accept MP4 and WebM inputs. The converter outputs MP4, WebM, or GIF. The compose tool supports MP3 audio and SRT/VTT subtitle files. Use the /video/validate API endpoint to confirm format compatibility before submitting a job.

Yes. VideoComposer is free for browser-based tools with no account required. Anonymous users can run up to 5 jobs per 24 hours. Paid credits-based plans are available for higher volume and full API access — no mandatory monthly minimum.

FFmpeg is a powerful command-line tool that requires installation, technical expertise, and manual scripting. VideoComposer wraps the same FFmpeg-based processing in a browser UI and a clean REST API — no server setup, no CLI knowledge needed. Use VideoComposer to get FFmpeg-quality results without the complexity.

Each credit equals one second of processing time (rounded up). Jobs deduct credits based on actual processing time. Typical usage in the docs: trim ~10 credits/min, convert ~20 credits/min, compose ~15 credits/video, overlay ~15 credits/min.

Yes. You can configure webhooks per API key to receive job completion callbacks. If you prefer, you can also poll job status; browser tools can send email notifications when a job finishes.