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Choose how much you want to speed the file up by
You're in good company:
Zamzar has converted over 510 million files since 2006
Speed up different file types
You can use Zamzar to process a wide range of different files - just click on a format to get started:
Why speed up your Audio?
Listening to audio at normal speed isn't always the most efficient use of your time. Podcasts, recorded lectures, meeting replays, and audiobooks can stretch across hours when you're trying to absorb information quickly. Without a way to increase playback speed, you're stuck consuming content at the pace it was recorded - which can feel slow, especially for material you're already partially familiar with. For professionals and students managing heavy workloads, this adds up to significant lost time each week.
Speeding up audio lets you reclaim that time without sacrificing comprehension. Research consistently shows that most people can follow speech comfortably at 1.5x or 2x speed, and with practice, even faster. Zamzar makes the process simple: upload your file, choose your preferred speed multiplier - from 1.5x right up to 15x - and download the adjusted file, ready to use anywhere.
Real use cases are varied and practical. A medical student might speed up recorded seminars during revision season. A journalist could quickly scan through hours of interview recordings. Language learners sometimes use slower or faster speeds to train their ear. A podcast editor reviewing raw recordings at 2x can cut their editing time in half. Whatever your reason, faster audio means more done in less time.
Available In Many Languages
Zamzar is widely used across the world, so we support many different languages, providing a much better experience for our users.
Highly Reliable
We operate with a dedicated support team to help you if you ever face an issue.
Very Experienced
We pride ourselves on being the best online file-conversion site there is, and because we’ve got over 15 years of experience, we’re confident we know what our customers need.
Highly Reputable
Zamzar has been featured by TechCrunch, Wired, Lifehacker, the Guardian, and many more publications.