How to Convert Video to MP4 with HandBrake

On this page

1. Choose a source you can review easily #

For this example, use a short checkout-demo.mkv recording with speech and visible interface text. The output will be checkout-demo-share.mp4. A short source lets you check the entire result without skipping around an hour-long file.

Get HandBrake from its official download page. Keep the source file and write the conversion to a different filename. That gives you a clean starting point if you later change the output settings.

If you haven't recorded the example yet, the OBS Studio recording guide explains how to make a window recording. Use a screen without account details or private messages when the video will be shared.

2. Open the recording in HandBrake #

Choose Open Source and select the recording, or drag the file onto HandBrake's main window. Wait for the scan to finish. You should see source information and a preview image. The official quick-start instructions document this opening route.

If the source contains several clips, check the Title control and choose the one you intend to convert. Compare its duration with the recording you expected. Selecting the wrong title can produce a perfectly valid file containing the wrong material.

3. Select a broadly compatible preset #

Choose Fast 1080p30 from Presets for this basic sharing example. HandBrake's preset guidance explains that presets combine settings for a particular output target. Begin with a documented preset before changing several controls at once.

On Summary, check that Format is MP4. This example aims at a shareable H.264 video, rather than a specialized archival output. MP4 describes the container; the video and audio codecs inside it still affect whether the recipient can play it.

For a source above 30 frames per second, consider whether you need to preserve that motion before choosing this preset. A cursor demonstration and a fast game recording have different needs. The point is to match the output to the job, not apply one preset to everything you own.

4. Check the picture before committing the encode #

Inspect the preview for crop, rotation and aspect ratio. A recording that fills a player can still have missing edge labels if a crop removes part of the interface. For a website walkthrough, check navigation text near all four edges.

The preview documentation describes Preview as a way to examine a short section using the selected settings. Use it before a long conversion. Watch the sample at the size a recipient is likely to view, especially if the purpose is reading text.

If the source is already small, upscaling won't recreate detail that wasn't recorded. I'd keep the first conversion close to the source dimensions, then reduce resolution only when the destination needs a smaller file. Change one thing at a time so you know which choice affected readability.

5. Confirm the audio and save location #

On Audio, check that the selected source track contains the speech you want. A recording with several tracks can include a microphone, system audio or another language. A successful encode won't help if it carries the wrong track.

Set Save As to checkout-demo-share.mp4 and use Browse… to choose the output folder. The quick-start documentation calls this file and folder the destination. Confirm that you aren't pointing at your only source copy.

For this short demonstration, a normal compatible audio choice is more valuable than preserving a complex surround layout nobody needs. If you're converting a film with multiple tracks, inspect the selected preset's audio choices instead of borrowing this simple walkthrough unchanged.

6. Convert video to MP4 and wait for completion #

Use the toolbar's Start control to begin the encode. HandBrake documents this action as Start; wording can differ between platform interfaces. You should see progress and a completion notification when the job finishes.

Encoding time depends on the source, encoder and computer. Don't close the app just because the preview looks ready. Wait for the job to finish, then open the output file from the destination you selected.

For multiple files, use Add to Queue after arranging each job. The queue documentation explains that jobs retain their settings when added. Changing the open document afterward doesn't rewrite every job already waiting in the queue.

7. Review the result in a separate player #

Open the finished MP4 in a player such as VLC. Check the start, a section with speech and the ending. For a short sample, watch the entire video. Confirm that duration, picture orientation and sound match the intended recording.

Compare file sizes only after checking the content. A smaller file can also mean you selected the wrong title, removed sound or made the text unreadable. If the result is too large, revisit quality or dimensions; if it's blurry, restore more detail before chasing an attachment limit.

HandBrake's quality guide explains the constant-quality scale. Lower RF means higher quality and generally a larger file. Avoid treating an RF number as a guaranteed file size, because different scenes compress differently.

Known problems worth separating from preset choices #

An older Mac encode crashes with 6.1 HE-AAC

Issue 6910 traced a crash to an unsupported channel layout in the Core Audio HE-AAC encoder. In April 2026, contributors documented using AAC-LC or another codec to preserve those channels, and the incompatible mixdown was disabled. Update an older installation before troubleshooting that combination, and choose an audio layout the encoder supports.

Corruption survives the conversion

In a February 2026 discussion, developer Bradley Sepos explained that HandBrake doesn't repair corrupted source video. If the same damaged frames appear in the source, get a clean recording or repair the source with an appropriate tool before converting it. Repeatedly changing the MP4 extension or quality slider won't reconstruct missing picture data.

Troubleshooting #

Variations for a different destination #

Make a video for a help-center page

Favor readable interface text and a short duration. If a smaller resolution makes button labels muddy, shorten the recording instead of shrinking every frame further. The screen recorder shortlist covers tools for making a better source in the first place.

Convert several recordings overnight

Queue each output with a separate name and check the queue before starting it. Begin with a short sample to confirm the chosen preset meets the destination's needs. For work that needs file copying or rewrapping without a fresh video encode, Shutter Encoder offers a different set of operations.

Send screenshots alongside the video

A labeled still image can make a bug report easier to understand than a video alone. The ShareX guide shows that workflow. Include the frame that proves the issue, then use the recording to show how you reached it.

Completion checklist #

• The intended title and audio track were selected.
• The output is MP4 at the chosen destination.
• The source file remains available for revisions.
• Picture edges, orientation and duration are correct.
• Speech and system sound behave as intended.
• The final file plays in the recipient's likely player.
• Any size reduction still leaves the important text readable.

Next steps #

Choose a better recording source using free screen recorders and OBS Studio vs Loom. Keep conversion settings tied to the destination instead of collecting presets you never use.

Related reading #

8 Best Free Video Converters for MP4 and Smaller Files, HandBrake vs Shutter Encoder: Sharing Copies or Editing Files?, Tool details, Other options.