HTML to PDF API for Developers

It is a visual rendering engine for HTML and CSS that can export to PDF. It aims to support web standards for printing. It is free software made available under a BSD license.

Docparser is a cloud based document processing solution and workflow automation software. Docparser makes it easy to convert PDF documents into structured data and automate document based workflows.

It provides developers with a tool to convert their HTML documents to PDF with high-fidelity. Packages are available for Node.js, Python, and PHP and the API allows any programming languages to be used.

Boost productivity with WorkPPT's AI-powered tools: Summarize content, generate slides, chat with AI, merge/split PDFs, add stamps/watermarks, and convert files. Fast, secure, and user-friendly!

It is an online editor for building next-generation documents with HTML and CSS. Create modern documents that combine the customizability of traditional Word documents with the structure of LaTeX.

It is a free and open-source document converter, widely used as a writing tool and as a basis for publishing workflows. It converts files from one markup format into another. It can convert documents in (several dialects of) Markdown, reStructuredText, textile, HTML, DocBook, LaTeX, MediaWiki markup, TWiki and many more.

It is a Portable Document Format (PDF) viewer that is built with HTML5. It is community-driven and supported by Mozilla Labs. The goal is to create a general-purpose, web standards-based platform for parsing and rendering PDFs.

It is a simple typesetting application. Turn plain Markdown into a formatted PDF, ready for print. Focus on content, not formatting.

pdfmake, client/server side PDF printing in pure JavaScript.

wkhtmltopdf and wkhtmltoimage are command line tools to render HTML into PDF and various image formats using the QT Webkit rendering engine. These run entirely "headless" and do not require a display or display service.

Create, edit, and review PDFs. E-sign documents and collect signatures. Collaborate with your team. All in one app.

AllInOneTools is a lightweight, developer-focused web platform that provides utilities for PDF processing, image optimization, text manipulation, SEO analysis, and Google AdSense workflows. It is designed for developers, indie hackers, and website owners who need fast, browser-based tools to support development, optimization, and monetization tasks. The platform emphasizes performance, privacy-friendly processing, and zero-installation workflows for modern web projects.

DocRaptor makes it easy to convert HTML to PDF and XLS format. Choose your document format, select configuration options and make an HTTP POST request to our server. DocRaptor returns your file in a matter of seconds. We provide extensive documentation and examples to get you started, and our API makes it easy to use DocRaptor to generate PDF and Excel files in your own web applications.

Convert anything to anything - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.

It is a suite of software based on an interpreter for Adobe Systems' PostScript and PDF page description languages. Its main purposes are the rasterization or rendering of such page description language files.

JSONViewerTool is a free developer utility for viewing, formatting, validating, comparing, and analyzing JSON data instantly. It provides 60+ online JSON utilities including: • JSON Viewer • JSON Formatter • JSON Validator • JSON Compare • JSON Size Analyzer • JSON to CSV Converter • CSV to JSON Converter • YAML to JSON Converter • JSON Minifier All tools run directly in the browser, ensuring privacy and fast performance. It helps developers debug API responses, inspect payload size, convert formats, and improve API performance. Try it here: https://jsonviewertool.com

Free online image tools — compress, resize, remove background and convert JPG, PNG, WebP, and AVIF images in seconds. No software to install.

OpenPDF is a free Java library for creating and editing PDF files with a LGPL and MPL open source license. OpenPDF is based on a fork of iText.

DocSpring is a service that makes it easy to generate PDFs by posting data to an API. You can upload PDF templates and configure form fields in our web-based template editor. You can also generate PDFs by filling in an online form.

It is a software development kit (SDK), consists of PDF SDK and PDF Conversion SDK. With this SDK, even developers with limited knowledge of PDF can quickly integrate professional PDF functions with just a few lines of code on multiple platforms.

It makes it easy for developers to generate beautiful PDFs. It is a comprehensive solution with an open-source library to design your documents, a simple API to generate your documents, and a cloud platform to host and track your documents.

Autype is a developer-focused Markdown editor and headless document generation platform with a REST API for workflow automation. Generate professional PDF, DOCX, or ODT documents or fill templates using structured data from Markdown, JSON, or CSV.

PDFGate is a developer-focused PDF API for generating and managing PDFs from applications. It supports HTML-to-PDF conversion, fillable PDF form fields, and a growing set of PDF utilities designed for backend workflows. The API is built for reliability and precision, making it suitable for invoices, contracts, reports, and other transactional documents. PDFGate emphasizes modern API design, predictable rendering, and features often missing from simpler HTML-to-PDF services, such as native support for interactive form fields. It is designed for teams that need more than basic PDF generation, with a roadmap that includes digital signatures, SDKs, and additional PDF processing endpoints.

Free online tools and developer APIs for PDF processing, image optimization, data formatting, and security tasks

Generate professional PDFs from HTML templates via API. Create invoices, reports, certificates and more with our fast, reliable PDF generation service.

An open-source, FFmpeg-based video encoding API that supports multiple concurrent instances. Easily scale video processing with parallel encoding, efficient resource management, and flexible API en...

Creatoryn is a free web-based suite of image tools for format conversion, resizing, compression, and cropping. It supports bulk workflows and processes images locally in the browser (no cloud processing required).

AI-powered OCR and document extraction API converts documents to structured JSON in seconds. 98%+ accuracy for invoices, Aadhaar, PAN, salary slips & 20+ document types. Pay per page.

Plan, write, and publish books, PDF guides, workbooks, and audiobooks with AI workflows. Customize branding and export instantly.

AmindPDF is an all-in-one PDF editor that allows you to easily create, edit, convert, sign, OCR PDF files. You can convert from and to PDF directly from Word, Excel, Image, and other popular file types.

It is a high-performance online file conversion and manipulation service for developers. It can be integrated into any application or platform in just a few minutes, scales up to handle any amount of traffic, uses little resources and supports 200+ conversion actions.

It is an XSLT processor for transforming XML documents into HTML, text, or other XML document types. It works with a compatible release of the Xerces-C++ XML parser: Xerces-C++ version 2.7.0. The focus for this release is on bug fixes, pluggable memory management, and enhanced stability improvements in stylesheet execution.

A tool which creates PDF documents interactively using HTML or Pug (a shorthand for HTML). It allows complex layouts to be defined with CSS and JavaScript while writing the content in a friendly, minimal syntax close to Markdown or LaTeX.

It is a simple tool for doing everyday things with PDF documents. It can be used to quickly merge and split PDF documents and pages.

It makes it easier to understand the structure of JSON files. The output is valid JavaScript which can be used directly in code. It's very helpful when writing queries for tools like jq.

A powerful image-to-table extraction utility. It allows developers to parse JPG/PNG images containing tabular data and convert them into machine-readable formats (Excel, CSV, JSON) for data processing pipelines.

JSON to XSD Generator helps developers convert JSON data into XML Schema (XSD) for validation, integrations, and system documentation. It supports nested JSON structures and generates clean schema output in seconds.

Upload any image and get a downloadable 3D model in minutes. AI-powered image to 3D conversion with professional quality GLB files. Built by people who actually use 3D tools.

Fast & free online image converter and editor. Resize, compress, and transform images easily with no sign-up required.

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Transcribe videos and audio to text instantly with ReelScribe – the fast, accurate, and unlimited AI transcription tool. Convert MP4, MP3, or any video to text and subtitles in 145+ languages. 99.8% accuracy. Download transcripts as DOCX, PDF, TXT, or SRT.

Free online photo editor and image tools. Batch resize, compress, convert, crop, blur, sharpen, rotate, grayscale, remove EXIF, and more—no installation required.

Convert JPG to WebP online free. Modern image format for faster websites. Reduce JPEG file size by 25-35%. Batch convert up to 20 files.

PixelPress is a fast, free, and secure online image converter. Convert PNG, JPEG, and AVIF to WebP instantly with 100% client-side processing. No uploads, maximum privacy, lightning-fast results.

Fast, free, and easy-to-use video compressor with no watermark and no usage limits.Reduce file size without losing quality for MP4, MOV, AVI, and more.

Provides various URL conversion tools to transform web content into Markdown, PDF, images, and more formats.

The best free TXT to SRT converter. Instantly convert plain text or timecoded scripts to standard SRT subtitle files online. No signup, privacy-focused.

Free tool to extract frames from videos. Convert video to frame images at any FPS. Browser-based, secure, 100% private.

Convert SVG files to stunning 3D models instantly and for free. Export as GLB, STL, or PNG. Professional quality with customizable thickness, materials, and lighting.

Transform any image to 3D models instantly with our advanced AI image to 3D generator. Convert 2D images to 3D models in seconds - free online tool for 3D printing, games, and professional projects.