The simplest way to change video format on iPhone

iPhone records video in H.264 or H.265 format by default, depending on your model and settings. To change the format before you record, open Settings, tap Camera, scroll to Formats, and choose either High Efficiency (H.265, smaller files) or Most Compatible (H.264, works on older devices and platforms). This setting applies to all new videos you record from that point forward.

If you already have videos in one format and need them in another, you cannot convert them directly on your iPhone. You will need to use a computer, a cloud service, or a third-party app. The method you choose depends on how many videos you need to convert and where you plan to use them.

Key Takeaways

  • Change your default recording format in Settings > Camera > Formats before you record new videos.
  • H.265 (High Efficiency) creates smaller files but may not play on older devices or some platforms.
  • H.264 (Most Compatible) works everywhere but takes up more storage space.
  • Converting videos already on your phone requires a computer, cloud service, or third-party app — iPhone has no built-in conversion tool.
  • The format you choose affects file size, playback compatibility, and how long your videos will stay on your device before storage fills up.

Understanding H.264 versus H.265 format

H.264 is the older standard. It plays on virtually every device, website, and platform — older iPhones, Android phones, Windows computers, Mac, YouTube, email, messaging apps. The trade-off is file size: a one-minute video in H.264 takes up roughly twice as much space as the same video in H.265.

H.265 (also called HEVC) is newer and compresses video more efficiently. The same one-minute video takes up half the space, which matters if you record a lot or have limited storage. The catch is compatibility: some older iPhones (iPhone 6s and earlier), some Android devices, older Windows computers, and some websites or apps may not play H.265 video without converting it first.

Choose H.264 if you share videos frequently with other people, upload to social media, or email videos to others. Choose H.265 if you record often, have limited storage, and mostly keep videos on your own devices or share with people who have newer iPhones.

How to check what format your current videos are in

Open the Photos app, find a video you recorded, and tap it to open it. Tap the three dots (or the info icon, depending on your iOS version) in the top right corner. Scroll down to Video Format — it will show either H.264 or H.265.

If most of your videos are in a format you no longer want, you have three options: convert them on a computer, use a cloud service that handles conversion automatically, or delete them and re-record in the new format. Re-recording is only practical if you have a small number of videos or if they are recent enough that you remember what they show.

Converting videos on a Mac or Windows computer

If you have a Mac, the easiest route is iMovie (free, built-in). Connect your iPhone to your Mac, open iMovie, import the video, and export it in the format you want. The export menu lets you choose resolution and format. This works for a handful of videos but becomes tedious if you have dozens.

On Windows, HandBrake (free, open-source) is the standard tool. read it, open your video file, choose H.264 or H.265 from the preset list, and click Start. Conversion takes time — a one-hour video may take 30 minutes to an hour to convert, depending on your computer's speed and the settings you choose.

For both tools, transfer your videos to your computer first. On Mac, use AirDrop or plug in your iPhone and open Finder. On Windows, use a USB cable or cloud storage like OneDrive or Google Drive.

Using cloud services to convert video format

Google Photos automatically converts all videos to a compressed format when you back them up (free, with limits). If you upload an H.265 video, Google Photos stores it in its own format, and you can read it back to your iPhone in H.264 if needed. This is not true conversion — it is Google's compression — but it solves the compatibility problem for most uses.

iCloud does not convert format, but it does store your videos. If you have iCloud+ (paid), you can access your videos from any device and read them to a computer for conversion there.

Online conversion websites exist, but they require uploading your video to a stranger's server. This is slow for large files, uses your data, and poses a privacy risk. Avoid them unless you have no other option and the video contains nothing sensitive.

Third-party apps for format conversion

The App Store has several video conversion apps — Video Converter, Converter Master, and similar titles. Most are free or low-cost. They work by converting video on your phone itself, which is slow (a five-minute video may take 10 to 20 minutes to convert) and drains your battery. They also take up storage space because the app needs room to work while it converts.

These apps are useful if you need to convert one or two videos and do not have access to a computer. For regular conversion or large batches, a computer is faster and more reliable. Read the reviews before downloading — some apps have poor conversion quality or aggressive ads.

What to do if a video won't play on another device

If someone tells you a video you sent them will not play, the format is usually the reason. Ask them what device they are using. If it is an older iPhone, Android phone, or Windows computer, convert the video to H.264 before sending it again. If it is a website or app that rejected the video, H.264 almost always works.

Before you convert, make sure the video file itself is not corrupted. Try playing it on your iPhone first. If it plays on your phone but not on the other device, format is the problem. If it does not play anywhere, the file may be damaged, and conversion will not fix it.

Frequently Asked Questions

Can I change the format of a video after I record it on my iPhone?

Not directly — iPhone has no built-in tool to convert video format. You must transfer the video to a computer (Mac or Windows) and use software like iMovie or HandBrake, or use a third-party app from the App Store. Converting on your phone is slower but works if you do not have a computer nearby.

Will changing my recording format affect videos I already have?

No. Changing the setting in Settings > Camera > Formats only affects new videos you record from that point forward. Videos already on your phone stay in their original format. You would need to convert them separately if you want them in a different format.

Why is my video in H.265 if I changed the setting to H.264?

Check that you tapped Most Compatible in Settings > Camera > Formats — that is the H.264 option. If you did, make sure you recorded a new video after changing the setting. Old videos will still be H.265. If the setting keeps switching back, restart your iPhone.

Does H.265 video play on Android phones?

Some newer Android phones play H.265, but many do not. If you regularly share videos with Android users, stick with H.264 (Most Compatible) to avoid compatibility problems. If someone tells you a video will not play on their Android phone, convert it to H.264.

How much storage space will I save by using H.265 instead of H.264?

H.265 typically uses about half the space of H.264 for the same video. A one-minute video in H.264 might be 100 to 150 MB, while the same video in H.265 might be 50 to 75 MB. The exact difference depends on resolution, frame rate, and how much motion is in the video.