Files stay on your device

Convert a file. Keep the original.

Convert images, audio, video, and documents in your browser. Choose a tool, check its supported formats, and download the result without a file upload.

  • Processed on your device
  • Ready when your browser is
  • Free to use
109tools documented
0files uploaded for conversion

The local toolbox

One calm place for everyday file work

Move from the kind of file you have to the job you need to finish. Every category reports its real catalog size.

All tools

Processing architecture

Privacy comes from where the work happens

LocalConvert delivers the interface and conversion modules. The selected file is opened and processed by your browser on this device.

Read our privacy approach

Open only the source you need

Choose a file deliberately. Conversion starts from that selection; browsing the directory does not give the page access to your other documents.

Allow time for the first run

Some tools download a processing engine before they can start. A slow first load can be a module download rather than an upload of your file.

Save and inspect the result

Download the output to retain it, then open it in the application that will use it. Keep the original until text, dimensions and playback have passed your checks.

How it works

  1. Choose your file

    Pick a supported file from your device or drop it into the tool.

  2. Set the result

    Choose the output, quality, or size options that matter for this job.

  3. Convert and download

    Your browser processes the file locally and prepares a fresh download.

Decide what must survive the conversion

Try three small sample workflows with known output checks →

Before choosing a format, name the property you need to preserve: editable text, transparent pixels, an audio track, chapter order or a matching checksum. A smaller file is useful only if the receiving application can still use the information you need.

Try a short sample with an obvious check. Include a transparent edge for an image test, an accented word for a document, or a spoken phrase near the end of a video. Compare the downloaded result in its destination application before replacing your source. A format change cannot restore detail that was already missing.