Convert ACT files online for free
The converter easily converts your ACT file to various formats - free and online. No Blender or extra software needed.
The converter also works in reverse, so you can convert other Audio formats to ACT with high quality output.
The .ACT file extension primarily refers to a specialized ADPCM Audio format created by various digital voice recorders and portable MP3 players (often utilizing chips from Actions Semiconductor). While efficient for storing long voice memos in small file sizes (often at 8kbps), these files are notoriously difficult to play on modern devices. Smartphones, web browsers, and standard media players often fail to recognize the proprietary ADPCM compression, leaving users unable to listen to or share their important meeting recordings or lectures.
A secondary but significant use of the .ACT extension is the Adobe Color Table file. Used by Adobe Photoshop and Adobe Illustrator, these files store a predefined palette of colors (Color Lookup Table) used to optimize images for the web (specifically for GIF and PNG export). Designers often struggle to view these palettes outside of the Adobe ecosystem or need to migrate them to different design tools.
To resolve playback issues with audio recordings, we recommend converting .ACT files to MP3 for universal sharing or WAV for high-fidelity editing. For designers handling color tables, converting to ASE (Adobe Swatch Exchange) allows for broader compatibility across Creative Cloud apps, or to PNG to create a visual reference of the palette. Simply drag and drop your file to identify the format and convert it instantly.
Use Convert.Guru to open and convert your ACT file.
Users also converted ACTION, ACTT, SFF, ACTS, CNS, ACTK, ATC, ACK, AIR, ACO, DEF, SND and ZIP files.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ACT converter.