Compress Video Online
Reduce a video's file size with a quality/size preset or a target size in megabytes. Upload one file, choose the compression approach, and download the processed result.
Compare the output with the source before replacing or deleting the original file.
How to Compress Video Online
Video compression reduces the amount of data used to store the video. A smaller output usually requires a tradeoff in visual detail, audio quality, resolution, frame rate, or encoding efficiency, depending on the workflow.
Step-by-step
- Upload or drag and drop one video file.
- Choose Preset or Target file size.
- For Preset, choose medium size/higher quality or smaller size/lower quality.
- For Target file size, enter the requested size in MB.
- Compress, download, and compare the output with the source.
Choose a method
- High quality, medium size: prioritize visual quality over maximum reduction.
- Low quality, small size: prioritize a smaller output and accept more visible loss.
- Target file size: request an approximate output size for a known upload or storage limit.
Preset or Target File Size?
Use a preset when the balance between quality and file size matters more than a specific number. Use target size when a service has a hard upload limit, but leave some margin because the final file can differ slightly from the requested MB value.
Why Compress Video Files?
Large videos take longer to upload, use more storage and bandwidth, and may exceed a service's file limit. Compression can make delivery easier, but aggressive reduction can introduce softness, block artifacts, banding, noisy motion, or less detailed audio.
Keep the source file. Review faces, text, fast motion, gradients, dark scenes, and audio in the compressed output before using it as the only copy.
Popular use cases
- Meet a documented upload-size limit.
- Reduce transfer time on a slower connection.
- Create a smaller sharing or review copy.
- Lower storage use for non-master copies.
- Prepare a lighter file for a website or messaging workflow.
Target size is an estimate
The tool uses the entered size as a target, but encoded video, audio, metadata, and container overhead can produce a slightly different result. Enter a value below the hard limit rather than exactly at it.
What Affects Compressed Video Size?
Content and duration
Longer footage needs more data. Fast motion, noise, particles, water, foliage, and detailed textures are generally harder to compress than static scenes and simple backgrounds.
Encoding choices
Codec, bitrate, resolution, frame rate, and audio settings influence size and quality. This standalone UI simplifies those decisions into two presets or a target-size request rather than exposing each control.
Compress, Convert, Trim, or Resize?
Compress Video
Reduce file size using a preset or target-size request.
Convert Video
Change the output format when compatibility is the main problem.
Trim Video
Remove unnecessary duration, which can also reduce the amount of video data.
Resize Video
Change frame dimensions when resolution, layout, or platform sizing is the task.
Supported Video Inputs
The uploader accepts common inputs including MP4, MOV, AVI, WebM, and MKV, plus other video extensions. Processing support can still depend on the video and audio codecs stored inside the file.
Need to Edit Your Video?
Continue with trimming, resizing, format conversion, text, subtitles, audio, and other edits.
Learn More About Video Compression
Frequently Asked Questions
Everything you need to know about compressing video.
Can I compress video online for free?
Yes. You can compress videos directly in your browser without installing software.
How much can I reduce video size?
It depends on the source encoding, duration, resolution, motion, audio, and selected method. There is no single reduction percentage that applies to every file.
Will compression reduce video quality?
Lossy compression can reduce visual or audio quality. Stronger size reduction generally increases the chance of visible artifacts, so review the output.
What formats can I compress?
You can compress MP4, MOV, AVI, WebM, MKV and other common formats.
What is target file size compression?
It lets you request an output size in MB. The result can differ slightly because the encoded streams, metadata, and container add overhead.
Is compressing the same as converting?
No. Compression focuses on reducing data and file size, while conversion focuses on changing the output format. A workflow can involve both.