Screen Recorder
Record your screen in the browser with optional system audio and microphone. Download WebM instantly — nothing uploaded.
Professional audio & video tools — fast processing in your browser, no watermarks, free to use.
All Tools
21 tools
Record your screen in the browser with optional system audio and microphone. Download WebM instantly — nothing uploaded.
Combine an external audio track with your video. Replace or mix original audio — fast, private processing in your browser.
Merge multiple videos (including TS segments) into one MP4 in the order you select.
Remove multiple sections from a video and export the remaining parts as one file.
Mark multiple time ranges to keep from one video and export them as a single merged file.
Reduce video file size with adjustable quality presets. Ideal for sharing and uploads.
Drag handles to crop your video frame, just like cropping a photo. Private in-browser processing.
Resize videos for TikTok, YouTube Shorts, Instagram Reels, and more.
Convert videos to MP4 (H.264 + AAC) with Fast-Start for smooth web playback. Optional fast conversion without re-encoding for compatible files.
Extract audio from video and download as MP3. Works with most common video files.
Convert a video segment to GIF, animated WebP, or animated AVIF — entirely in your browser.
Capture a still frame from video, or stitch multiple frames into one image. Processed in your browser.
Extract the video track only — no audio. Keeps the original encoding when possible.
Extract the original audio track without converting to MP3. Keeps the original encoding when possible.
Select a region on your video and blur it to cover logos or text. Processed in your browser — not AI inpainting.
Add text or image watermarks to your video at a position you choose. Processed locally on your device.
Convert TXT, VTT, ASS, SBV, or SRT subtitles to standard SRT format. Fast, private, in your browser.
Add subtitle tracks or burn subtitles into MP4 videos (supports TXT, SRT, VTT, ASS, and SBV).
Score your YouTube title for SEO — character count, keywords, and readability tips.
Upload your thumbnail and preview how it looks on the YouTube homepage, search results, and mobile feed.
Estimate YouTube ad revenue from views and RPM. Pick a niche or set a custom RPM — daily, monthly, and yearly ranges in seconds.
Why ALTools
Processing happens on your device for quick results. Large files never leave your machine.
No account required. Your media stays on your device — we never see your files.
Professional-grade tools, completely free, with no branding on exports.
ALTools processes video in your browser — files never leave your device. Learn why local processing matters for speed and privacy.
Read about in-browser video processingLearn
How It Works
Pick merge, extract MP3, compress, resize, or title optimizer from the grid.
Select your files. Everything is processed on your device for speed and privacy.
Get your output instantly — no queue, no email, no cloud storage.
Browse all tools or click Get Started. No sign-up, no watermarks — fast and private.
Get Started