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hateitall

Video Converter

Decode a playable video and rebuild it as a genuine MP4 or WebM container supported by the browser. Your source stays on this device.

Processed locallyIn: MP4, WebM, MOVOut: MP4, WebM

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How to use video converter

  1. Choose a supported file from your device.

  2. Adjust the task-specific controls and review any browser capability warnings.

  3. Process the file locally in this tab; no file bytes are sent to a server.

  4. The output is reopened with a local format or playback check before download.

What this tool does

  • Decode a playable video and rebuild it as a genuine MP4 or WebM container supported by the browser.
  • Runs through a shared, code-split processing engine instead of an upload service
  • Blocks download when the generated output fails its local verification check

How the result is verified

The generated bytes are reopened locally with the relevant media, archive, Office, font, or PDF parser. A structurally unreadable output is blocked instead of being offered under a misleading extension.

Frequently asked questions

Is my file uploaded to a server?

No. The file is opened with your browser's File API and processed by code running in your tab. You can confirm this yourself: open your browser's developer tools, watch the Network panel, and process a file — no request carries your file's bytes. See our How it works page for a step-by-step verification guide.

Why can browser support differ?

HateItAll uses the decoders and encoders installed with your browser and operating system. The tool checks capabilities at runtime and reports an unsupported combination instead of uploading the file or relabelling incompatible bytes.

Task-specific versions of this tool

The same local tool, preconfigured for a specific job.

Related tools

Compress Video

Resolution and bitrate presets re-encoded locally in real time, with before/after size reporting.

MP4 · WebM · MOV (browser-dependent)→ MP4Heavy on device

Video Editor

Rotate, flip, crop, resize, retime, mix audio, and burn text or an image into one verified video export.

MP4 · WebM · MOV→ MP4Heavy on device