Built with HTML JavaScript REST API

Video Download API, built for developer products

Start free, get a YouTube video download API key, and ship download, audio, subtitle, transcript, thumbnail, and metadata workflows from one public REST surface.

Migrating from https://loader.to/api/button/?url=? Open the loader.to Button API migration guide.

Video Download API Logo
REST API Formats Usage OpenAPI
GET /ajax/download.php 200 OK
curl "https://p.savenow.to/ajax/download.php?format=mp3&url=VIDEO_URL&apikey=YOUR_API_KEY"
Endpoint map
Create job
/ajax/download.php
Poll progress
/ajax/progress
Auth
apikey parameter
Public OpenAPI docs
Usage-based pricing
First-party support
  1. 1. Request

    Send a URL and format.

  2. 2. Poll

    Track job progress.

  3. 3. Return

    Use the download URL.

p.savenow.to is the default shared API host used in public examples. If your dashboard shows a custom API hostname, use that account-specific host instead.

Product overview

Build with the API. Launch faster with supporting options.

Video Download API is built around a REST video download API for teams that need control over downloader UX, pricing, formats, and polling. Widgets, cards, buttons, and templates are supporting paths for teams that want a smaller integration surface.

Input
YouTube URL and output format
Processing
Asynchronous download job
Result
Download URL plus metadata

YouTube API use cases

Match common YouTube downloader workflows to the REST API

Explore the API paths for YouTube downloads, MP3 audio conversion, MP4 video quality control, and direct API comparisons. Each use case connects back to the same API key, pricing, docs, and progress polling flow.

YouTube Download API

YouTube Download API for product teams

Build YouTube downloader products with a REST YouTube Download API for video, audio, subtitles, transcripts, thumbnails, and metadata.

View use case

YouTube to MP3 API

Convert YouTube to MP3 with a REST API

Run YouTube-to-MP3 conversion jobs with a REST API. Request MP3 output, poll progress, and estimate usage-based pricing for audio downloader workflows.

View use case

YouTube to MP4 API

YouTube to MP4 API for video quality control

Request YouTube to MP4 downloads from 360p through 8K when available with a REST API built for video quality, progress polling, and production downloader products.

View use case

Subtitle workflow

Subtitles and transcripts API

Generate VTT or SRT subtitles and transcript-ready text from YouTube videos using the same API key and documentation path.

View use case

Metadata workflow

Video info API for title and thumbnail metadata

Request structured title and thumbnail fields with add_info=1 before continuing through the download and polling flow.

View metadata API

SaaS provider comparison

Direct YouTube API access for SaaS provider comparisons

Compare direct API pricing, keys, endpoints, docs, and support when evaluating marketplace-style YouTube API options.

View comparison

API pricing comparison

Ultrathink and loader.to API pricing comparison

Compare YouTube download API pricing, migration scope, docs, and signup paths before choosing a provider.

View comparison

Button API migration

loader.to Button API endpoint migration

Map https://loader.to/api/button/?url= searches to Button API embeds, pricing, docs, and API key paths.

View migration

Pricing teaser

Pay as you launch and scale

Start free, test with your API key, then use usage-based pricing for production downloader traffic.

Comparing Ultrathink or loader.to API pricing? Start with the calculator, then use the comparison page to check migration, docs, and API key paths.

Docs and resources

Use OpenAPI, examples, and templates

Open the API reference for request details, or use resource templates when you want a faster downloader launch.

Support paths

Find the right next step

Existing users can jump back into the dashboard, while new teams can reach support before committing build time.

Create API key

API FAQ

Answers before your first request

Quick answers for developers comparing API keys, pricing, documentation, output formats, and the first REST call.

How do I get a Video Download API key?

Create a free account, open the dashboard, and use the generated API key in REST requests with the apikey parameter.

How does Video Download API pricing work?

Pricing is pay as you go. Start free for testing, then add wallet credit as download, audio, subtitle, transcript, or metadata usage grows.

Where are the Video Download API docs?

Use the interactive OpenAPI documentation to review endpoints, parameters, progress polling, authentication, and response schemas before integrating.

Which downloader formats does the API support?

The API supports MP3 audio, MP4 video qualities, subtitles, transcripts, thumbnails, and video metadata for supported video URLs.

What should my first API request be?

Send a GET request to /ajax/download.php with a video URL, output format, and your API key, then poll the progress endpoint until the download URL is ready.