⚡ Quick Answer: What can these video tools do?
Compress videos to a target file size, convert between formats (MP4, WebM, MKV, AVI, MOV), mute audio tracks, replace audio with a custom clip, and resize video dimensions — all locally in your browser using the WebCodecs & MediaRecorder APIs. No files leave your device.
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Supported: MP4, WebM, MKV, AVI, MOV, OGV
About the Video Tools
All processing happens entirely within your web browser using the Web Audio API, MediaRecorder API, and Canvas API. No video data is ever transmitted to Makron's servers or any third party. Your files remain private and on your device at all times.
Compress
Reduce video file size by targeting a specific output size in megabytes, or by manually setting a quality level. Optionally pair compression with dimension resizing to achieve the smallest possible file for web delivery or email attachment limits.
Convert
Change the container format of your video between MP4, WebM, MKV, AVI, MOV, and animated GIF. Codec support depends on the browser — Chrome and Edge have the broadest codec coverage. Safari supports MP4/H.264 best. For lossless remuxing of MKV/AVI/MOV, the original streams are repackaged into the new container where possible.
Audio — Mute & Replace
Strip the audio track from any video clip with one click, or replace the existing audio with any audio file you choose. The replacement audio can be set to a custom volume level and will loop if it is shorter than the video. Useful for adding background music, replacing dialogue, or removing unwanted sound.
Resize Dimensions
Scale video to a precise pixel resolution using custom width/height values, or choose from a list of industry-standard presets (4K, 1080p, 720p, portrait 9:16, square 1:1). Aspect ratio locking is available for custom dimensions so your video is never accidentally distorted.