Application

Telegram Sticker Transcoding Tool

A simple web app that can automatically batch-convert videos or GIF animations into the format required by Telegram.

Repository: https://github.com/krab-lab/tg-sticker-transcoder

This app creates WebM Video Stickers, not vector-based TGS Animated Stickers.

A purely front-end tool for batch-converting GIF, MP4, MOV, WEBM, and other files into TG video stickers or video Emoji WebM files.

It can automatically adjust the bitrate under file size limits to achieve the highest-quality output.

All processing is completed locally in the browser. No data is uploaded to the cloud, ensuring privacy and security.

Quick Start

Visit the TG Sticker Transcoding Tool

Prepare the videos or animations you need to convert. Note:
TG requires animations to be no longer than 3 seconds, so the tool will only extract the first 3 seconds of the video. It is recommended to prepare your files in advance to avoid overly long processing times, running out of memory, or being cropped.

Select the output mode and start processing

Select the output mode you need, and activate either the Sticker button or the Emoji button.

Make sure that New files use: shown below the file upload box is the mode you want.

Click the file upload box, or drag files into the upload box. Batch selection is supported.

When finished, click the Start button in the Conversion Queue to begin processing.

Processing complete

Click ZIP to download all completed transcoded WebM animations in the queue.

Click the trash can icon, or refresh the page, to clear the files in the queue.

Features

Sticker mode: Outputs VP9 WebM, with one side at 512px and the other side no more than 512px, automatically preserving the aspect ratio when scaling.
Emoji mode: Outputs VP9 WebM at exactly 100 x 100px. Non-square assets will be padded to a square with a transparent background.
Frame rate up to 30 FPS, with bitrate dynamically adjusted according to the asset duration to get as close as possible to the 256 KB limit.
Supports batch queues, single-file downloads, ZIP download of all files, and loop previews.

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