Media Processing APIs and Visual Tools
Access HTML rendering, image processing, and PDF workflows through consistent APIs and ready-to-use web interfaces built for reliable production use.
Core V1 Endpoints Overview
HTML Endpoints
Render HTML and CSS into images or PDF documents using deterministic layout calculation and controlled rendering behavior suitable for backend automation.
Image Endpoints
Transform and optimize images through resizing, compression, enhancement, and format conversion actions built for scalable media workflows.
PDF Endpoints
Perform structured PDF operations such as compression, splitting, merging, extraction, encryption, and page-level document handling.
Tools Endpoints
Inspect and analyze media files to extract metadata, detect formats, compute hashes, and evaluate structural properties without modifying content.
API Access for Developers
API keys provide secure access to H2I endpoints through simple HTTP requests, with enforced limits and predictable execution rules.
- Free API key with limited usage
- Paid subscriptions with scalable limits
- Simple key management
- Upgrade or downgrade anytime
Use H2I Directly on Our Website
H2I also exposes its capabilities through ready-made web tools. These interfaces are organized around specific tasks and mirror real API behavior, allowing users to run actions visually without writing code.
This makes it possible to test workflows, validate outputs, and complete one-off tasks directly in the browser before or instead of using the API.
HTML Rendering
Dedicated pages for converting HTML into images or PDF documents with controlled layout options.
Image Processing
Task-based pages for compressing, resizing, transforming, and optimizing images using guided controls.
PDF Tools
Focused interfaces for common PDF workflows such as compression, conversion, extraction, and restructuring.
Media & Analysis Tools
Utility pages for inspecting and analyzing media files without altering the original content.
Who H2I Is For
Backend Developers
H2I provides backend developers with stable, documented APIs that can be integrated into services, jobs, and application workflows without managing rendering engines, media libraries, or processing infrastructure.
Product & Platform Teams
Teams building products that handle user-generated images, documents, or HTML output can use H2I to standardize processing behavior across environments and features.
Content & Media Platforms
Platforms that manage large volumes of images or documents can use H2I to perform optimization, validation, and transformation tasks through consistent API calls and visual tools, enabling safe and scalable media processing.
Automation & Integration Workflows
H2I integrates into scheduled jobs, imports, exports, and background workflows where repeatable, non-interactive media processing is required and execution is controlled by the consuming system.
QA & Validation Pipelines
The Tools endpoint allows teams to inspect media properties, extract metadata, and identify potential issues, enabling validation logic to be applied before files are stored, published, or delivered downstream.
Small Teams & Solo Builders
H2I allows smaller teams to access advanced media processing capabilities without building or maintaining custom systems, lowering both cost and complexity.
Education & Learning Platforms
Educational platforms can generate images and documents programmatically or through visual tools, supporting instructional and learning use cases without requiring custom media processing systems.
Built for Production, Ready to Scale
H2I provides a consistent and reliable way to process media across APIs and visual tools, using the same request patterns and execution rules. Start with simple use cases, then scale to high-volume workflows without changing how your system integrates.