ACE Converter

Convert ACE archives to ZIP, RAR, 7Z and beyond online for free

Drop files here. 1 GB maximum file size or Sign Up
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Multiple Output Formats

ACE archives unpack into 17+ output formats. 17 conversion paths let you extract and repackage legacy ACE contents into any modern archive type.

Simple Interface

Three clicks from upload to download. Convertio keeps the workflow minimal so you spend less time figuring out how to convert your archives.

Multi-File Processing

Upload several ACE archives together and convert them all at once. Batch mode eliminates the need to handle each archive individually.

Legacy Format Support

ACE is a discontinued format that few modern tools handle. Convertio gives you a reliable way to access and repackage old ACE archives.

Data Privacy Guaranteed

Uploaded archives are removed from servers right after conversion finishes. Completed outputs are automatically cleaned up within 24 hours.

No Local Software Needed

Everything runs server-side on Convertio. Your computer stays unburdened and you never need to install specialized archive utilities.

How to convert ACE file

1

Select your ACE archive from your Computer, Google Drive, Dropbox, or paste a URL to the source.

2

Pick a target format from the 17+ supported archive types — ZIP, RAR, 7Z, TAR, and more.

3

Verify the output format and file details before starting the conversion process.

4

Press Convert and grab the finished archive once processing is done.

About format

ACE is a proprietary compressed archive format created by Marcel Lemke around 1998, primarily associated with the WinACE) archiver for Windows. The format gained popularity in the late 1990s and early 2000s due to its strong compression ratios, which were competitive with RAR and often superior to ZIP on many data types. ACE archives support multiple compression levels, solid archiving (treating multiple files as a single stream for better ratios), multi-volume splitting for distribution across size-limited media, recovery records for repairing damaged archives, and password protection. The format uses a proprietary compression algorithm that combines dictionary-based and statistical methods, optimized for general-purpose file compression with particular effectiveness on executable files and structured data. One advantage was the compression efficiency — ACE frequently produced smaller archives than contemporary ZIP implementations, making it popular for file distribution on bandwidth-constrained dial-up era internet. The solid archive mode provided another strength by exploiting redundancy across multiple files, substantially reducing total archive size when bundling files with similar content. WinACE development ceased in the mid-2000s, and a critical vulnerability#Security) discovered in 2019 in the widely-used unacev2.dll library led many archiving tools to drop ACE support. The format is primarily encountered today in legacy archives from its peak usage period.
Developer: Marcel Lemke
Initial release: 1998

Frequently Asked Questions

Why convert ACE to a different format?

ACE is a legacy format with limited tool support today. Converting to ZIP or 7Z makes your archives accessible on virtually every modern system.

How can I open ACE archives?

WinACE was the original tool, but it is discontinued. WinRAR and PeaZip can still extract ACE archives on Windows and other platforms.

Is converting ACE free on convertio.co?

Convertio provides free ACE conversions. Simply upload, choose your target format, and download — no payment or account creation needed.

Will my folder structure be kept during conversion?

Yes, Convertio preserves the original directory layout and all nested files when converting from ACE to another archive format.

Can I convert several ACE archives at the same time?

Batch processing is fully supported. Upload multiple ACE archives and convert them simultaneously on convertio.co.

What makes ACE different from other archive formats?

ACE once offered strong compression, but its proprietary nature limited adoption. Modern alternatives like 7Z and ZIP are now more widely used.

ACE conversion quality rating

4.7 (785 votes)
You need to convert and download at least 1 file to provide feedback!