Free browser video tools
Inspect, compress, convert, mute, trim, extract audio, plan bitrate, shift subtitles, create short GIFs, and capture thumbnails directly in your browser.
Best for lightweight video prep when you need a smaller clip, MP4 or WebM output, silent video, extracted audio, subtitle cleanup, or a cover image without uploading the source file.
Category
Video tools
Access
Free
Browser-first utility pages
Each listed tool has its own page with focused controls, examples, assumptions, FAQs, and related tools.
Best for lightweight video prep when you need a smaller clip, MP4 or WebM output, silent video, extracted audio, subtitle cleanup, or a cover image without uploading the source file.
Open an individual tool page when you need the actual controls, examples, assumptions, FAQs, and related links.
Use the tool descriptions and notes to decide whether you need a calculator, converter, formatter, generator, or planning helper.
If the workflow branches, use the related tools on each tool page to move to the next step.
Compare related tools, open the most specific utility for your job, and move between adjacent tasks.
Use this category page as the index; use individual tool pages for task completion.
Available now
Video tools
This page groups related tools for easier browsing, while every individual tool page focuses on the specific workflow and output.
Do AscendLab video tools upload my files?
The current video tools read the file in your browser. Compression, conversion, muting, audio extraction, GIF conversion, and trimming use local ffmpeg.wasm after you start processing, while video info, bitrate calculators, audio size calculators, subtitle converters, and thumbnail extraction use browser-side file or text handling.
Which video jobs are covered now?
This category currently covers video info inspection, video bitrate and file-size planning, audio file-size planning, subtitle time shifting, SRT/VTT conversion, video compression, format conversion to MP4 or WebM, removing audio, extracting audio, converting short clips to GIF, video trimming, video thumbnail extraction, and frame capture.
Why are video tools more limited than calculators?
Video processing depends on browser codec support, device memory, CPU speed, and WebAssembly engine size. The first tools use conservative limits so mobile and desktop experiences stay stable.
Related categories