All tools

Private media converters

Choose a tool and convert files locally in your browser.

Compress video under 25MB

Compress a video under 25MB online in your browser. Free, private, no upload, no watermark.

Target file sizeNo uploadMP4 output

Compress video

Free browser-based video compressor. Compress MP4, MOV, WebM and more with no upload and no watermark.

CRF quality controlNo watermarkLocal processing

MOV to MP4

Convert MOV to MP4 online for free. Browser-based, private, no upload, no watermark.

iPhone videosMP4 outputNo sign-up

MP4 to GIF

Convert MP4 or other videos to GIF online. Free, private, no upload.

Trim clipSet FPSLooping GIF

GIF to MP4

Convert GIF to MP4 online for free. Browser-based, private, no upload.

Smaller outputSocial friendlyNo upload

Extract audio

Extract audio from video online and export MP3. Free, private, no upload.

MP3 outputLocal conversionFast workflow

Trim video

Trim video online for free. Browser-based, private, no upload, MP4 output.

Start timeDurationMP4 output

Resize video

Resize video online for free. Change video width, export MP4, no upload.

Width controlMP4 outputNo upload

Image converter

Convert images to JPG, PNG, or WebP online. Free, browser-based, private.

HEIC to JPG

Convert HEIC to JPG online for free. Browser-based, private, no upload.

iPhone photosJPG outputNo upload

Who this is for

KlasseHand is built for students, parents, and teachers who need fast file conversions for assignments, class sharing, and school communication.

How it works

Open a tool, pick your file, select output settings, and download the result. Most workflows run locally in-browser, without creating an account.

Typical use cases

Reduce a lesson video for email, turn a phone MOV file into MP4 for classroom devices, extract MP3 from a speaking exercise, or convert HEIC photos for LMS uploads.