Generate waveform images from audio

We offer a variety of features to reduce audio size while maintaining quality, as well as add effects like loops or watermarks.

The /audio/waveform Robot generates waveform images for your audio files and allows you to change their colors and dimensions.

What can I do with this?

Our /audio/waveform Robot can be used in combination with other Robots, to create powerful workflows unique to your use case. For inspiration, here is an example scenario, with explanations and code for all platforms, that you can also try live on our website:

Transloadit can generate waveform images from audio files. In addition to changing the dimensions and background...


This Robot supports parameters such as format, width, height, background_color, center_color and 1 more to influence its behavior. Read all about the technical details in its docs.

Blog posts

We wrote the following posts about the /audio/waveform Robot on our blog:


Transloadit is a SaaS with a subscription model.

Our /audio/waveform Robot counts towards your Plan's data at a normal rate. It does charge a minimum of 1MB whenever it is used. Assuming an average input audio file of 3.8MB and an output of 3.04MB, that would still have a minum charge of 1MB, so here's what it would approximately cost to generate audio files per Plan:

Plan Price Costs per file within your Plan Overage Fee
Sandbox (2GB) Free $0.0
to generate 2048 audio files
Startup (10GB) $49/month $0.0048
to generate the first 10240 audio files
Small Business (30GB) $99/month $0.0032
to generate the first 30720 audio files
Medium Business (150GB) $249/month $0.0016
to generate the first 153600 audio files
Enterprise 📞 - N/A

Just like with your mobile plan, pricing goes down when you commit to larger monthly volumes. When you reach your plan's limit, we'll continue to service you, but remind you to upgrade to more cost-efficient plans. This is unless you explicitly set budgets. You can change plans at any time. More info and available plans on our Pricing page.

Don’t just take our word for it

  • “I'm not usually one for fanboy-ism but Transloadit is one service I would recommend without hesitation. Their product and customer support is outstanding.”
    Dave Perrett, CTO at Shuttlerock
  • “Having a solution for both uploading and transcoding has been a godsend for the current scale that we are at five years after first choosing Transloadit.”
    Jon Wong, Engineer at Coursera
  • “Using Transloadit saves development and maintenance. Being able to focus on our product instead of reinventing the wheel cannot be understated.”
    Matt Sumner, Developer at thoughtbot