OLS to ECUx converter

Bring your recoverable binaries and maps into a fresh WinOLS project. One OLS file in, one ECUx download out.

.olsSource project ECUxRecovered project

Choose your OLS project

Free service

We’ll recover the content we can verify and show you exactly what is ready to import.

One file, up to 128 MiB. Your original stays intact.

Password-encrypted .olsx files are not supported.

Upload first, then sign in or create a free account to process your file.

Permission and legal responsibility

You are responsible for ensuring that you have permission and that it is lawful to upload, convert and use this file, including any file linked to another WinOLS user or tuner. Conversion does not grant ownership, a licence or permission to use third-party content.

When this converter can help

Tuner-linked OLS files

Some customer-linked projects contain readable binaries and maps. Rebuild supported content as ECUx without copying the source project’s customer binding, creator details or history.

This does not decrypt password-encrypted content or guarantee conversion of every locked file.

Damaged OLS Files

If the map section is damaged but complete binary versions survive, recover those binaries with a report explaining what could not be read.

Missing binary data, unreadable structures and zero-filled files may be unrecoverable.

Older WinOLS versions

ECUx can help move recovered content into an older WinOLS release that supports ECUx import but cannot open the source OLS format.

Import has been confirmed for a recovered project in WinOLS 5.91. Map and multiple-version support depend on your release.

The first recovered version is not confirmed as the factory original. Review the versions, maps and recovery notes before using the data.

Only need map definitions? Use the map extractor