Video Converter

Convert videos between MP4, MOV, AVI, WebM and MKV formats online for free. All processing in your browser, no upload needed.

Drop video here

MP4, MOV, AVI, WebM, MKV — max 500 MB recommended

MP4 MOV AVI WebM MKV

Important Notes

Recommended max file size: 500 MB. Files up to 2 GB may work but could be slow or cause browser issues.
Best performance on Chrome or Edge. Safari has limited codec support for some formats.
Conversion runs in your browser — it may take several minutes for large files.
Your video never leaves your device. All processing is 100% local.
On mobile devices, stick to files under 100 MB for best results.
Supported formats: MP4, MOV, AVI, WebM, MKV. Output quality depends on source file and selected format.

How to Convert Video Online Free

Converting a video with Equalza takes just a few steps:

Drop or select your video file (MP4, MOV, AVI, WebM, or MKV).
Choose the output format you need from the dropdown.
Optionally pick a social-media preset (WhatsApp, Instagram, TikTok, YouTube) or email-friendly size.
Click Convert and wait while FFmpeg.wasm processes the video right inside your browser.
Download your converted file. No account, no upload, no waiting in a queue.

Key Features of Our Video Converter

Equalza's video converter is built for speed, privacy, and simplicity:

100% browser-based — powered by FFmpeg.wasm, nothing leaves your device
Five output formats — convert to MP4, WebM, AVI, MOV, or MKV
Social-media presets — one-click optimization for WhatsApp, Instagram, TikTok, and YouTube
No sign-up or watermark — completely free, forever
Multi-format input — accepts MP4, MOV, AVI, WebM, and MKV
Real-time progress — watch conversion status update live

Why Choose Equalza to Convert Video Online

Most online converters upload your files to remote servers, exposing your content to third parties and capping free usage. Equalza is different. Every byte of your video stays on your own device because conversion runs locally via WebAssembly. That means zero privacy risk, no file-size paywalls, and no daily limits. It works on any modern desktop browser — Chrome, Edge, and Firefox deliver the best performance — and supports 18 interface languages out of the box.

Understanding Video Formats: MP4, WebM, AVI, MOV & MKV

Each video format has its strengths:

MP4 (H.264) — the universal web and mobile standard with the widest playback compatibility
WebM (VP9) — the open format optimized for web streaming, favored by YouTube
AVI — a legacy Microsoft format still used in screen recordings and older workflows
MOV — Apple's native format, common on iPhones, iPads, and professional cameras
MKV (Matroska) — a flexible container that supports multiple audio/subtitle tracks, popular for HD content

Equalza lets you convert freely between all five formats so your video works wherever you need it.

Social Media Presets Explained

Getting the right format and settings for each platform can be confusing. Our presets handle it for you:

WhatsApp — MP4, reduced resolution and bitrate for fast sharing under chat file limits
Instagram — MP4 optimized for feed and story dimensions
TikTok — vertical MP4 with settings matching TikTok's recommended specs
YouTube — high-quality MP4 for uploads that retain maximum detail
Email — small MP4 that fits within typical email attachment limits

Browser Limitations & Tips for Best Results

Because conversion happens inside the browser, your device's RAM is the bottleneck. We recommend files up to 500 MB for a smooth experience; files up to ~2 GB may work on desktops with ample memory but can slow down or crash the tab. Chrome and Edge deliver the best WebAssembly performance. Firefox works well; Safari has limited support. On mobile devices, stay under 100 MB. Close other tabs to free memory, and keep the browser tab in the foreground — background tabs may be throttled by the OS.

Frequently Asked Questions

What video formats can I convert between?

Equalza supports five formats: MP4, WebM, AVI, MOV, and MKV. You can convert from any of these formats to any other. The conversion is handled by FFmpeg.wasm running entirely in your browser.

Is my video private? Does it get uploaded anywhere?

Your video never leaves your device. Equalza uses FFmpeg compiled to WebAssembly, so the entire conversion process runs inside your browser. No file is uploaded to any server, and no third party can access your content.

How long does video conversion take?

Processing time depends on the file size, output format, and your device speed. A 100 MB video typically takes 1-3 minutes on a modern laptop. Larger files or older hardware will take proportionally longer because all encoding runs locally in the browser.

What are the social media presets?

Presets automatically configure the output format, resolution, and bitrate to match the requirements of popular platforms: WhatsApp, Instagram, TikTok, YouTube, and Email. Just pick a preset and Equalza handles the rest.

Does this tool work on phones and tablets?

Yes, it works on mobile browsers that support WebAssembly — including Chrome and Firefox on Android and Safari on iOS. For the best experience, stick to files under 100 MB on mobile, as phones have less available memory than desktops.

What is the maximum file size I can convert?

We recommend files up to 500 MB for reliable, fast results. Files up to approximately 2 GB may work on desktops with plenty of RAM, but larger files increase the chance of the browser tab running out of memory.

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