Our Mission
ChunkAudio was born from a simple frustration: why do most online audio tools require you to upload your files to a server? When you're working with personal recordings, interviews, podcasts, or any audio you care about, the last thing you want is your files sitting on someone else's server.
Our Promise
Your audio files never leave your device. Every split, every cut, every operation happens right in your browser. We built ChunkAudio this way because we believe privacy shouldn't be a premium feature - it should be the default.
The Problem We Solve
Splitting audio files into equal parts seems like it should be simple. But when you search for "split audio online," you're met with tools that:
- Require you to upload files to their servers (privacy risk)
- Force you to create an account (hassle)
- Limit file sizes or number of splits (frustrating)
- Add watermarks to output files (unprofessional)
- Present complex interfaces with features you don't need (confusing)
We thought there had to be a better way. Modern browsers are incredibly powerful - they can decode audio, process it, and create new files entirely on your device. So we built ChunkAudio to harness that power while keeping everything simple and private.
What We Stand For
Privacy First
Your files stay on your device. Period. We use browser-based processing because your audio is your business, not ours.
Simplicity
One job, done well. Upload a file, set your chunk length, download. No learning curve, no feature bloat.
Speed
No upload wait times. Processing starts instantly because everything happens on your device using modern Web APIs.
Free Access
The core tool is free forever. No hidden limits, no trial periods, no watermarks. We believe useful tools should be accessible to everyone.
The Technology Behind ChunkAudio
ChunkAudio leverages modern web technologies to deliver a desktop-quality audio editing experience entirely in your browser:
Web Audio API - We use the browser's built-in audio processing capabilities to decode and analyze audio files. This means your browser handles the heavy lifting, not a remote server.
File API - Your audio file is read directly into browser memory. It's never sent over the network. When you "upload" to ChunkAudio, you're really just giving your browser permission to read the file.
JavaScript Processing - Our code calculates split points, optionally detects silence for smart cuts, and generates new audio files - all running locally on your device.
Blob Creation - Split audio chunks are created as WAV files in your browser's memory, then made available for download directly to your device.
Who Uses ChunkAudio?
We've heard from users around the world who rely on ChunkAudio for their audio splitting needs:
Podcasters
Split long recordings into episode-sized chunks for easier editing and distribution across platforms.
Educators & Students
Break lecture recordings into manageable study segments or prepare audio for learning management systems with file size limits.
Transcription Professionals
Prepare long audio files for transcription services that have length restrictions (usually 15-30 minutes).
Musicians & Audio Engineers
Split live recordings, rehearsal sessions, or long mixes into individual tracks for further editing.
Researchers & Journalists
Process interview recordings while maintaining complete privacy - especially important for sensitive subjects.
Audiobook Creators
Divide long recordings into chapter-length segments for distribution platforms.
Meet the Creator
Tim
Founder & Developer
Hi! I'm Tim, the developer behind ChunkAudio. I built this tool after getting frustrated with online audio splitters that required uploading my files to unknown servers. As someone who works with audio regularly for podcasts and transcription projects, I needed something fast, simple, and private. When I couldn't find it, I built it myself. My goal is to create useful web tools that respect your privacy and just work - no accounts, no hassle, no compromises.
Supporting ChunkAudio
ChunkAudio is free to use, but it costs money to develop, host, and maintain. We keep the lights on through:
- Non-intrusive advertising - We show tasteful ads that don't interrupt your workflow
- Ad-free subscriptions - For users who prefer a completely ad-free experience
- Community support - Word-of-mouth recommendations from satisfied users
If ChunkAudio has been useful to you, consider sharing it with others who might benefit, or upgrading to our ad-free option to support ongoing development.
Ready to Split Some Audio?
No signup required. Your files stay private. Just open the tool and go.
Open Audio Splitter