Scales proportionally — aspect ratio is preserved, never stretched
Advanced settings (used when "Custom" is selected)
Drop videos or a whole folder here, or /
Batch and nested-folder drops supported · 100% on-device · processed one file at a time
Why tinyclip
No paid tier, no feature limits, no sign-up.
Transcoding runs in-browser via ffmpeg.wasm — your video never leaves your device.
MP4/MOV/AVI/MKV/WebM/FLV input, compressed to MP4.
Drop in multiple files or a whole folder, then download everything as a ZIP.
Common use cases
Messaging apps cap video file sizes, and phone footage easily runs to hundreds of MB. Balanced preset plus 720p downscaling usually cuts files to well under half their size.
Most mailboxes cap attachments at 25–50MB. After compression and downscaling, a few-minute screen recording or demo clip usually fits — no cloud-drive links needed.
Background videos and course material are sensitive to load time. H.264 MP4 at a reduced resolution loads faster, saves bandwidth, and plays in every browser.
Batch-compress old phone exports and dashcam footage before archiving — the same storage holds several times more, with virtually no visible quality difference.
FAQ
Does compressing a video upload it to a server?
No. All transcoding/compression runs locally in your browser via WebAssembly (ffmpeg.wasm) — your video is never uploaded or sent anywhere.
Which video formats are supported?
Input supports common containers like MP4, MOV, AVI, MKV, WebM and FLV; output is always MP4 (H.264 + AAC), for the best compatibility.
How do I shrink a video that's too big for WhatsApp, Discord or email?
Pick the Balanced or Smallest preset and downscale the resolution to 720p (longest edge 1280px). Most phone-shot videos compress to well under half their original size, which fits comfortably within typical messaging and email attachment limits.
Will compression hurt video quality?
Video compression is lossy, but the default settings are tuned to be visually near-indistinguishable: use Balanced for everyday sharing, High quality for important footage, and Smallest only when file size matters most.
Can it convert MOV / MKV / AVI to MP4?
Yes. Any supported input (iPhone MOV, downloaded MKV, legacy AVI/FLV) is transcoded to MP4 (H.264 + AAC), which plays on virtually every device and platform.
How large a video file can it handle?
There is no fixed size limit — it depends on your computer's memory. Files up to a few GB are comfortable on a modern desktop; very large or very long 4K footage may fail due to browser memory limits.
Why does processing a video take a while?
Video transcoding is far more compute-intensive than image compression, and to avoid multiple transcodes fighting over your CPU, the tool processes one file at a time. Larger or longer videos take proportionally longer — that's a real computational cost of doing this entirely on your own device.
Does it work on phones?
It opens and works in mobile browsers, but phones have limited memory and processing power, so large files may fail — a desktop browser is recommended.
Do I need to install anything or sign up?
No. It works right in the browser — no download, no account, no ad pop-ups.
Is this tool free?
Completely free, no paid tier or feature limits.