Compare Free AI OCR Tool to these popular alternatives based on real-world usage and developer feedback.

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.

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.

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

Google Cloud Vision API enables developers to understand the content of an image by encapsulating powerful machine learning models in an easy to use REST API.

Tesseract was originally developed at Hewlett-Packard Laboratories Bristol and at Hewlett-Packard Co, Greeley Colorado between 1985 and 1994, with some more changes made in 1996 to port to Windows, and some C++izing in 1998. In 2005 Tesseract was open sourced by HP. Since 2006 it is developed by Google.

Amazon Rekognition is a service that makes it easy to add image analysis to your applications. With Rekognition, you can detect objects, scenes, and faces in images. You can also search and compare faces. Rekognition’s API enables you to quickly add sophisticated deep learning-based visual search and image classification to your applications.

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.

It is the official Portable Network Graphics (PNG) reference library. It is a platform-independent library that contains C functions for handling PNG images. It supports almost all of PNG's features, is extensible, and has been widely used and tested.

This library supports over 60 languages, automatic text orientation and script detection, a simple interface for reading paragraph, word, and character bounding boxes. Tesseract.js can run either in a browser and on a server with NodeJS.

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.
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 an open-source JPEG 2000 codec written in C language.

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.

It is a barcode scanning library for Java, Android. Decode a 1D or 2D barcode from an image on the web.

It is ready-to-use OCR with 40+ languages supported including Chinese, Japanese, Korean and Thai.

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 is a free library for JPEG image compression.

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.

Editaimg helps you edit images with AI: remove backgrounds, edit text on images, upscale resolution, retouch faces, and export in popular formats.

scanR is a simple OCR API service that supports 32 languages and can extract text from images or PDF files.

It tags, classifies, and organizes your real estate images.

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...

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

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

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

Automate invoice processing with an invoice ocr api to save time, reduce errors, and streamline financial workflows in ERP systems.

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).

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 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.

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.

Describe image content in seconds with an AI image describer. Generate descriptions, prompts, and alt text. Try free—no login required.

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

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.

BGRemoverFree is a smart AI tool designed to turn any image into a clean, professional visual within seconds. With a single upload, it automatically removes distracting backgrounds and highlights the main subject with perfect clarity. Whether you're preparing product photos, designing social media content, or creating marketing materials, BGRemoverFree gives you studio-quality cutouts without any editing skills. Fast, accurate, and fully web-based — it’s the easiest way to create polished, ready-to-use images for any purpose.

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.

AI food photography turns any photo into professional menu images in 30 seconds. Trusted by 1,500+ restaurants. 95% cheaper than photographers. Try free →

PDF.net is a web-based, all-in-one PDF editing and document processing platform that enables developers and teams to programmatically create, edit, sign, annotate, convert, merge, split, compress, and secure PDF files via a clean SaaS UI and API-ready workflow. It supports common input formats (PDF, DOCX, JPG, PNG) and focuses on efficient, privacy-first processing with automatic file cleanup and HTTPS encryption.