Compress video for Telegram
Need a clip to land under Telegram's 50 MB bot limit, or just upload faster? Slimcast resizes it to an exact target so it fits the first time. Everything runs in your browser through ffmpeg.wasm, so your video never leaves your device, with nothing to upload and no server to wait on.
Frequently asked
Telegram compression, answered
What is Telegram's video size limit?
Telegram bots can only send files up to 50 MB. The app itself sends much larger clips (around 2 GB), but big files upload slowly and eat your bandwidth. Compressing to 50 MB or less keeps you under the bot limit and makes any send faster.
Is my video uploaded anywhere?
No. Slimcast compresses your video entirely in your browser using ffmpeg.wasm. The file never leaves your device, there is no server, no account, and no upload step. You drop the video on the page and the work happens locally.
How do I hit exactly 50 MB?
Pick the 50 MB target and Slimcast reads your clip's duration, then computes the right video bitrate to land the output just under that size. You get a web-optimized MP4 that fits the Telegram bot limit on the first try, no guesswork.
Can I compress several clips for Telegram at once?
Yes. Drop in multiple videos and each gets its own queue row with a live progress bar, the output size, and the percent reduction. Process them one at a time or all at once, then download each file or grab them all together.