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Free developer tools and APIs

Free image, video and data APIs

This directory helps developers choose and test deterministic image, video, GIF and network-data operations online, then automate the same workflow through a documented API.

Convert, inspect and compose media directly in your browser without a key. When your workflow is ready for automation, call the same API with an APIAny key.

No key for online use

Upload a file, choose settings and download the result from the browser Playground.

API key for integration

Programmatic requests use Bearer or X-API-Key authentication with documented limits.

Local processing stack

Media is processed by our Sharp and FFmpeg workers and is not sent to a paid AI model.

Browse free APIs by category

Choose a focused image conversion, image analysis, image composition, video and GIF, or network data workflow.

All free API tools

Each tool includes an online Playground, input and output guidance, limits, error references and a copyable curl request.

31 APIs

Image compression

POST /api/free/compress-image

Compress a single image to WebP with a 500px or 1200px target width.

Flexible compression

POST /api/free/compress-image-stream

Resize and recompress a single image with custom output format, size, and quality.

Batch compression

POST /api/free/batch-compress

Compress up to 20 images in one request and receive base64 WebP results.

Watermark

POST /api/free/watermark

Apply a text or image watermark to a single image.

Batch watermark

POST /api/free/batch-watermark

Apply the same text or image watermark to up to 20 images.

HEIC conversion

POST /api/free/heic-to-webp

Convert HEIC or HEIF images to WebP.

Video compression

POST /api/free/compress-video

Compress a video to MP4 with a configurable resolution and quality preset.

Audio extraction

POST /api/free/extract-audio

Extract MP3 audio from a video and optionally return a silent video.

IP lookup

GET /api/free/ip-geo

Look up the country, region, city, and network location details for an IP address.

Image converter

POST /api/free/convert-image

Convert common image formats to WebP, PNG, JPEG or AVIF online or by API.

Batch image converter

Paid account required

POST /api/free/batch-convert-images

Convert multiple images to WebP, PNG, JPEG or AVIF and download one ZIP with a per-file manifest.

Image resizer

POST /api/free/resize-image

Resize an image by width and height with predictable fit and format controls.

Batch image resizer

Paid account required

POST /api/free/batch-resize-images

Apply one width, height, fit mode and format to multiple images, then download a ZIP manifest.

Image cropper

POST /api/free/crop-image

Crop a precise rectangular region using pixel coordinates.

Batch image cropper

Paid account required

POST /api/free/batch-crop-images

Crop the same pixel rectangle from multiple images and receive valid outputs in one ZIP.

Rotate image

POST /api/free/rotate-image

Rotate an image and optionally flip it horizontally or vertically.

Batch image rotation

Paid account required

POST /api/free/batch-rotate-images

Rotate or flip multiple images with one orientation setting and download a ZIP result.

Image metadata

POST /api/free/image-metadata

Inspect safe technical metadata such as size, format, color space and alpha.

Image technical metadata

Paid account required

POST /api/free/batch-image-metadata

Inspect safe technical properties across an image collection in one ordered JSON response.

Color palette

POST /api/free/color-palette

Extract representative HEX colors and approximate proportions from an image.

Batch color palettes

Paid account required

POST /api/free/batch-color-palette

Extract representative HEX colors from multiple images in one ordered JSON response.

Image hash

POST /api/free/image-hash

Calculate a deterministic SHA-256 checksum for an image file.

SHA-256 file checksums

Paid account required

POST /api/free/batch-image-hash

Calculate one SHA-256 checksum per accepted upload and return ordered JSON results.

Image similarity

POST /api/free/image-similarity

Compare two images and return a normalized visual similarity score.

Image diff

POST /api/free/image-diff

Generate a PNG heatmap that highlights pixel differences between two images.

Grid image cutter

POST /api/free/grid-cut-image

Split one image into an even grid and download all tiles as a ZIP.

Image joiner

POST /api/free/join-images

Join up to 20 images horizontally or vertically with optional spacing.

Favicon generator

POST /api/free/favicon-generator

Create common PNG favicon sizes and a web manifest in one ZIP.

Video thumbnail

POST /api/free/video-thumbnail

Capture a JPEG or WebP thumbnail at a selected video timestamp.

Video to GIF

POST /api/free/video-to-gif

Convert a short video segment into an optimized animated GIF.

GIF frame extractor

POST /api/free/gif-to-frames

Extract animated GIF frames as a numbered PNG ZIP archive.

SEO & GEO

Practical media APIs for apps, agents and workflows

APIAny free APIs cover common deterministic media operations. The pages state inputs, outputs and limits so developers and answer engines can identify the right tool quickly.

Convert

Change format, size, crop or orientation with predictable image output.

Analyze

Read safe metadata, colors, hashes, similarity scores and visual differences.

Integrate

Prototype without a key, then automate the same operation through an authenticated API.