100% Client-Side Processing
Your video is processed entirely inside your web browser. No files are uploaded to any server. Perfect for confidentiality and maximum performance.
WSTFL VIDEO TOOLS
Make every
frame count.
A precise container patch for editors who want their high-bitrate video to arrive on TikTok exactly as it left the timeline.
01 H.264 stays untouched02 Works in your browser
LOCAL PROCESSOR v1.0
Apply WSTFL Method
Optimise the MP4 container without re-encoding.
Drop your video here
or choose an .mp4 / .mov from your device
PATCH PROFILEExact container timing
Your file never leaves this browser.
Lightning
instant execution
Unlimited
file size limit
100%
local processing
01
Keep the picture
The H.264 video packets are copied byte-for-byte.
02
Patch the timing
MP4 sample tables are rewritten with the BXD method.
03
Download locally
Save the result and upload it from your desktop browser.
BUILT FOR EDITORS
Small container.
Big difference.
WSTFL Method only touches the MP4 metadata and audio sample tables. There is no ffmpeg, no transcoding queue, and no hidden upload.
H.264 / AAC · MP4 + MOV · 60 / 120 FPS workflows