Online Video Compressor: video compressor

Dedicated variation for video compressor. Use Online Video Compressor with the full workflow from the main tool, with no sign-up and no login.

Use this tool

Online video compressor

Compress multiple videos directly in your browser, control compression level, and preview before download.

Videos to compress

Batch uploads up to 10 GB are supported. Videos over 512 MB are streamed locally; smaller files may use the site processing API.

Add videos to start compression.

On first run, the compression engine may download assets and start slower.

Videos over 512 MB stay on your device and are processed in the browser. Smaller files may be sent to the site processing API when available.

Open task-focused versions while keeping the complete workflow from the main tool.

Quick guide and practical context

In-browser video compression

This tool compresses videos directly in the browser, with no desktop installation required.

You can process multiple files in one queue and keep track of progress file by file. Videos larger than 512 MB use streamed local processing and are not sent to the site server.

Compression control with expected final size

The compression slider lets you choose lighter or stronger reduction depending on your quality target.

Before processing, the tool shows an estimated output size based on duration and target profile to help you decide quickly.

  • Lower compression for better quality retention.
  • Medium compression for day-to-day uploads.
  • Higher compression for stricter file-size limits.
  • Batch queue for handling several videos at once.

Privacy and performance notes

Videos over 512 MB stay on your device and are compressed in a browser worker, with temporary output written to local storage. Smaller files may use the site processing API when it is available.

Large, high-resolution videos can take a long time. Mobile browsers may pause work when you switch apps or lock your phone, so keep this page open and connect the device to power when possible.

The tool streams media data instead of splitting the video into separately compressed clips, which avoids introducing cut points or audio synchronization gaps when joining segments.

Frequently asked questions

Can I compress multiple videos in one go?

Yes. Batch upload is supported and each video is processed with an individual status.

Can I control compression strength?

Yes. The compression level slider lets you choose the reduction intensity.

Is the final-size estimate exact?

It is an estimate based on duration and compression profile. Actual output can vary by codec and scene complexity.

Are videos uploaded to a server?

Videos over 512 MB are processed locally and are not sent to the server. Smaller files may be sent to the site processing API when it is available.

Can I compress a 5 GB video on a phone?

Files up to 10 GB are accepted, but a 5 GB video can take a long time and requires compatible browser codecs and free storage. Keep the page open; a mobile browser may pause processing when the app goes into the background.

Helpful links to continue similar tasks without starting over.

Privacy and local processing

Tools on this page run directly in your browser and do not send entered content to a backend. This improves privacy and reduces latency.