Converts WebM files to MOV format — web-optimized video to Apple ecosystem. All conversion happens locally in your browser with no file size limits.
Runs on FFmpeg
Content reviewed October 2026 · About Toolzum
Grade videos with 18 filters across Color, Artistic, Blur, and Lighting (grayscale, sepia, pixelate, gaussian blur, vignette, brightness/contrast/saturation) plus a live still-frame preview. Export MP4, WebM, or GIF — local FFmpeg work, unlimited saves.
Convert MP4 to WebM for fast web embedding with smaller files. Make homepage videos load instantly — local FFmpeg work, unlimited saves.
Convert Apple MOV files to web-ready WebM for fast HTML5 playback. Shrink a 200 MB screen recording for embedding — local FFmpeg conversion, unlimited saves.
Convert WMA to uncompressed AIFF for Apple pro audio workflows. Bring legacy libraries into Logic — local FFmpeg work, unlimited saves.
Convert M4A to AIFF for Logic Pro and GarageBand native ingest. Move Apple audio into pro workflows — local FFmpeg work, unlimited saves.
WebM (WebM Video) uses lossy compressed encoding and is best for web-optimized video — streaming, embedded players, and HTML5 video tags with fast loading. MOV (QuickTime Movie) uses lossless or lossy encoding and excels at Apple ecosystem — Final Cut Pro, iMovie, and macOS video editing workflows. Converting between them lets you take advantage of each format's strengths — for example, using a compressed format for sharing and a lossless format for editing. All conversion happens locally in your browser with no file size limits.
Final Cut Pro and QuickTime ingest MOV smoothly with full metadata. WebM works on the web but fights Apple timelines.
Yes with high-bitrate output — transcode once at generous settings. Repeated WebM↔MOV cycles degrade visibly.
VP9 WebM alpha converts to ProRes 4444 alpha where supported. Verify transparency in QuickTime before editing.
No — conversion runs locally in your browser with FFmpeg. Only saves touch the network — downloads are unlimited.
Video to MP3 Converter
Extracts the audio track from uploaded video files (MP4, MOV, AVI, WebM) and encodes it as a high-quality MP3 file. Free to start with no signup.
Crop Video
Crop the visual area of your MP4 or WebM video directly in the browser with 9:16, 1:1, 16:9 presets or custom dimensions with X/Y offsets. Free to start with no signup.
Video Compressor
Reduces MP4, MOV, and WebM video file sizes with a configurable CRF 20–40 slider (default 28, libx264 fast preset), plus a GIF mode with color-palette control. Videos never leave your device — compression runs locally in your browser with FFmpeg WASM.
Video to GIF
Convert MP4/WebM to GIF animations. Videos up to 250MB. Videos never leave your device — compression and conversion run locally in your browser with FFmpeg WASM.
Subtitle Translator
Translate pasted SRT or VTT subtitle text into 9 languages (Spanish, French, German, Japanese, Chinese, Hindi, Portuguese, Russian, Arabic) while preserving every timestamp — AI-powered with your own API key, text never stored.
Video Watermark Adder
Burn text watermarks into a video with 5 position presets (bottom-right default, fixed 24px white on semi-transparent black box). Brand one clip at a time — local FFmpeg work, unlimited saves.