Transloadit

Audio Encoding. Built for Developers.

Encode, merge, loop, extract artwork, and generate waveforms — all automated in a Simple API.

Get Started
Documentation
No credit card needed5 GB included in the free plan
Audio source
source.wav
48 MB·44.1 kHz
Encoding…
.mp3
.mp3
128 kbps · 4.2 MB
.ogg
.ogg
160 kbps · 5.8 MB
.aac
.aac
256 kbps · 8.4 MB
Audio Optimization

Compress audio up to 90% while preserving quality with modern codecs.

Transform with Simple APIs

Convert, merge, and enhance audio files with powerful Robot chains.

Automate with AI

Transcribe speech, generate audio, and extract metadata automatically.

Robots

Transform Your Audio

At Transloadit, a Robot is an automated worker that performs a single task in your audio workflow — like extracting cover artwork, encoding audio, or concatenating audio files.

Extract Cover Artwork

Extract embedded cover artwork from audio files.

/audio/artwork

Encode Audio Files

Convert audio files into all kinds of formats. Like MP3, AAC, and more.

/audio/encode

Concatenate Audio Files

Concatenate several audio files together into a single audio file.

/audio/concat

Loop Audio Files

Loop one audio file as often as is required to match a given duration.

/audio/loop

Merge Audio Files

Overlay several audio files on top of each other.

/audio/merge

Generate Waveforms

Generate waveform images for your audio files.

/audio/waveform

Our AI-powered Robots

Transcribe speech in audio files

Transcribe speech to text in audio files.

/speech/transcribe

Convert text into speech

Write text in a document, and have it spoken aloud.

/text/speak

Demo

Build Audio Pipelines by Chaining Robots

Chain Robots together to create end-to-end automated pipelines for audio processing.

Uploading audio…
joakim_karud-rock_angel.wav
Assembly Instructions (JSON)
{
  "steps": {
    ":original": {
      "robot": "/upload/handle"
    },
    "encode_mp3": {
      "use": ":original",
      "robot": "/audio/encode",
      "preset": "mp3",
      "ffmpeg": {
        "ab": "320k",
        "ar": "44100"
      }
    },
    "artwork": {
      "use": "encode_mp3",
      "robot": "/audio/artwork",
      "format": "jpg",
      "width": 280,
      "height": 280
    },
    "waveform": {
      "use": "artwork",
      "robot": "/audio/waveform",
      "width": 280,
      "height": 80
    }
  }
}
Audio format conversion
WAV → MP3
2:44
Audio compression
45 MB → 5.2 MB
1:32
Audio processing speed
850 ms → 120 ms
3:21
Made for Audio at Scale

Audio workflows without the pain

Skip the hassle of encoding, format conversion, and audio processing. Transloadit gives you fast, safe, and cost-effective audio workflows through APIs and SDKs built for production.
Pro codecs

MP3, AAC, WAV, and more with tuned presets, two-pass, and per-title encoding. Get crisp audio at the smallest size.

Faster start

Parallel ingest, turbo transcodes, and instant edge delivery cut startup time across regions.

Secure by default

Signed uploads, scoped credentials, and compliance-aware storage options keep your audio pipelines safe.

Zero infrastructure

No servers to provision or maintain. Our cloud workers auto-scale with your traffic. Just API calls — we handle the rest.

No storage problems

First-class S3, GCS, and Azure support. Originals stay put, results export straight to your buckets.

Simplify development

Typed SDKs, deterministic Assemblies, and flexible Robots. CI-safe audio pipelines you can version-control.

Try Transloadit for free
Demos

See it in action

To give you an impression of our versatility, here is a hand-picked overview of live demos.

Try Transloadit

Try Transloadit for free

Encode any format or resolution on Transloadit's global infrastructure.
Large audio files slow down processing
Compress audio with AAC/Opus
Maintaining multiple versions for different platforms
Convert to any audio format on demand
Inconsistent volume across files
Automatically normalize audio levels
Manual metadata handling
Extract & inject metadata automatically
Background noise reduces audio quality
Apply audio filters (denoise, equalize) quickly
Silence or dead air needs trimming
Automatically detect & trim silence
Poor playback due to unoptimized encoding
Encode audio for smooth streaming
Need to protect sensitive audio
Alter voices automatically
GDPR
HIPAA
ISO 27001ISO27001
AES-256
SOC 2 Type II
Try Transloadit for Free
No credit card needed · 5 GB included in the free plan