MP4 Tools & Converters

Work directly with MP4 files, then convert them when you need another format.

11 native tools·11 converters·Secure processing·Automatic deletion

Native MP4 tools

Purpose-built tools for inspecting, editing, cleaning and optimizing MP4 files.

MP4✓

MP4 Compressor

Reduce video size with selectable quality.

MP4✓

MP4 Trimmer

Cut a precise section from an MP4.

MP4✓

Merge MP4 Videos

Join compatible MP4 clips in upload order.

MP4✓

Crop & Resize MP4

Resize video to common dimensions while preserving aspect ratio.

MP4✓

Rotate or Flip MP4

Rotate 90 degrees or mirror a video.

MP4✓

Change MP4 Speed

Speed up or slow down video and audio together.

MP4✓

Mute MP4

Remove the audio track without re-encoding video.

MP4✓

Add Subtitles to MP4

Burn an uploaded SRT subtitle file into video.

MP4✓

MP4 Thumbnail Extractor

Capture a JPEG frame at a chosen timestamp.

MP4✓

MP4 Metadata & Media Info

Inspect streams, codecs, dimensions, duration and tags.

MP4✓

Repair / Remux MP4

Rebuild the MP4 container without re-encoding streams.

Supported MP4 conversion tools

The catalog only lists conversion pairs implemented by mp4.now.

MP4→MP3

Convert MP4 to MP3 Online

Convert MP4 files to MP3 securely in your browser.

MP4→WebM

Convert MP4 to WebM Online

Convert MP4 files to WebM securely in your browser.

MP4→MOV

Convert MP4 to MOV Online

Convert MP4 files to MOV securely in your browser.

MP4→AVI

Convert MP4 to AVI Online

Convert MP4 files to AVI securely in your browser.

MP4→GIF

Convert MP4 to GIF Online

Convert MP4 files to GIF securely in your browser.

MP4→WAV

Convert MP4 to WAV Online

Convert MP4 files to WAV securely in your browser.

MP4→JPG

Convert MP4 to JPG Online

Convert MP4 files to JPG securely in your browser.

MOV→MP4

Convert MOV to MP4 Online

Convert MOV files to MP4 securely in your browser.

AVI→MP4

Convert AVI to MP4 Online

Convert AVI files to MP4 securely in your browser.

WebM→MP4

Convert WebM to MP4 Online

Convert WebM files to MP4 securely in your browser.

MKV→MP4

Convert MKV to MP4 Online

Convert MKV files to MP4 securely in your browser.

MP4 guides and resources

Confirm compatibility and understand what changes before converting an important file.

Supported formats

Review the exact input and output formats available.

File format guides

Learn how the formats in this catalog store content.

MP4 FAQ

Read direct answers to common conversion questions.

Conversion articles

Use practical, format-specific workflows and checklists.

REST API

Integrate supported conversions into an application.

MCP server

Expose conversion tools to compatible assistants.