Add from Photos, Files, or Share Sheet
Bring in one video or several. The Share Extension can hand larger jobs to the main app without making you start again.
Make videos smaller. That’s it.
Cinder is a no-BS video compressor for iPhone and iPad. Pick a video, choose how small, and let Cinder do the work on your device.
Compression happens on your device.
Your videos are not uploaded to Cinder-operated servers for processing.
No uploads for compression
No account
No app analytics
No ads or tracking
Simple controls. On-device results.
Start with a preset, tune every detail if you want, and queue the whole batch. Cinder stays out of the way.
From anywhere to exactly the size you need.
Choose quick or precise
Use Small or Balanced, or control codec, resolution, bitrate, audio, frame rate, and keyframe interval yourself.
Save where you want
Export to Photos, share to another app, keep files inside Cinder, or use the optional Cinder folder in your iCloud Drive.
Questions, bugs, or feature requests?
Every message lands in the Cinder support inbox. Tell us what you’re working on.