Compress Video

Typical screen recordings and phone videos shrink by 50-80%. The compressor re-encodes your video with the H.264 codec at an efficient quality level and downscales resolutions above 1280px wide, which is where most of the savings come from. Videos that were already encoded efficiently (e.g. exported from a modern editor at a sensible bitrate) will shrink less, and the tool will tell you honestly if compression would not help.

No. The entire compression runs inside your browser using WebAssembly — the video never leaves your device. That makes this tool safe for private recordings, internal meetings, and unreleased content, and it means there is no upload time and no file-size billing.

Because the work happens on your own device rather than a server farm. Encoding speed depends on your hardware and the video length — short clips finish in under a minute, while a 10-minute 1080p video can take several minutes. A progress percentage is shown while encoding.

MP4, MOV, WebM, MKV, and AVI files are accepted, up to 200 MB. The output is always an MP4 (H.264 + AAC) with faststart enabled, which plays everywhere: email previews, WhatsApp, Discord, PowerPoint embeds, and every modern browser and phone.

The encoder targets visually transparent quality (CRF 28 with perceptual tuning): side by side on a normal screen, most people cannot tell the difference. Resolution above 1280px wide is downscaled — ideal for sharing, though if you need the original 4K resolution for editing, keep your original file.

Embedded videos are the single biggest cause of oversized presentations — a raw screen recording can add 100+ MB to a deck. Compressing the video first keeps the PPTX small enough to email and quick to open. After embedding, you can also run the deck through our PowerPoint compressor.