How do I test if my video format plays across all web browsers and devices?

Upload your video to the Video Format Compatibility Checker. The tool runs HTML5 video element codec tests (`canPlayType`) across H.264, H.265 (HEVC), VP8, VP9, AV1, and AAC/Opus to show exact device compatibility.

Which video format has 100% universal compatibility?

MP4 container with H.264 video (Constrained Baseline or Main profile) and AAC audio plays natively on 99.9% of all browsers, iOS, Android, and smart TVs.

Why won't my HEVC (H.265) or MKV video play in Chrome or Safari?

Chrome and Safari lack native support for MKV containers and certain proprietary H.265 licensing profiles without hardware decoder support.

Does the tool recommend conversion steps?

Yes. If compatibility issues are detected, it provides 1-click links to the Video Converter or Video Compressor.

Can I test video playback on mobile devices?

Yes. Run the test on iPhone Safari or Android Chrome to verify mobile-specific hardware support.

Is the video uploaded to any server?

No. Codec probing executes via local browser DOM Media Source APIs.

NexLove Media

Video Format Compatibility Checker

Inspect video container, video codec, audio codec, resolution, and frame rate to check compatibility across Chrome, Safari, iOS, Android, Discord, TikTok, and Instagram.

TL;DR: Video Format Compatibility Checker is a 100% free browser-based media utility. Verify if your video file plays seamlessly across major web browsers, mobile operating systems, and social media apps.

Drag & drop your video here

or click to browse from your device

Or press Ctrl + V to paste

MP4 WebM MOV MKV Up to 500MB

100% local browser processing — this file never leaves your device

Understanding Video Format Compatibility Checker

Inspect video container, video codec, audio codec, resolution, and frame rate to check compatibility across Chrome, Safari, iOS, Android, Discord, TikTok, and Instagram. Designed for creators, video editors, audio engineers, web designers, and developers who need instant, high-precision processing without software installation, watermarks, or file uploads.

Mathematical Formula & Technical Methodology

\text{Compatibility Score} = \frac{\sum_{j=1}^M W_j \times C_j}{\sum W_j} \times 100\%

Formula Variables Explained:
Evaluates codec, container, aspect ratio, and audio stream compliance against platform ingestion rules.

Step-by-Step Worked Example

An H.264 / AAC MP4 video receives a 100% Universal Compatibility score across all devices.

100% Client-Side Privacy Guarantee

All media decoding, manipulation, calculations, and encoding execute locally inside your web browser using HTML5 Canvas, Web Audio API, WebCodecs, Web Crypto, and modern JavaScript engines. Zero server uploads, zero telemetry, and no registration required.

Frequently Asked Questions

: Upload your video to the Video Format Compatibility Checker. The tool runs HTML5 video element codec tests (`canPlayType`) across H.264, H.265 (HEVC), VP8, VP9, AV1, and AAC/Opus to show exact device compatibility.
: MP4 container with H.264 video (Constrained Baseline or Main profile) and AAC audio plays natively on 99.9% of all browsers, iOS, Android, and smart TVs.
: Chrome and Safari lack native support for MKV containers and certain proprietary H.265 licensing profiles without hardware decoder support.
: Yes. If compatibility issues are detected, it provides 1-click links to the Video Converter or Video Compressor.
: Yes. Run the test on iPhone Safari or Android Chrome to verify mobile-specific hardware support.
: No. Codec probing executes via local browser DOM Media Source APIs.

Embed This Tool

Add the live Video Format Compatibility Checker to your own website with this embed code:

<iframe src="https://nexlove.org/embed/video-format-compatibility-checker.html" width="100%" height="650" style="border:1px solid #e2e8f0;border-radius:12px" title="Video Format Compatibility Checker — NexLove" loading="lazy"></iframe>

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