Magika

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.

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 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 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.

Transform basic prompts into expert-level AI instructions. Enhance, benchmark & optimize prompts for ChatGPT, Claude, Gemini & more.

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 platform for building production-grade LLM applications. It lets you debug, test, evaluate, and monitor chains and intelligent agents built on any LLM framework and seamlessly integrates with LangChain, the go-to open source framework for building with LLMs.

It improves the cost, performance, and accuracy of Gen AI apps. It takes <2 mins to integrate and with that, it already starts monitoring all of your LLM requests and also makes your app resilient, secure, performant, and more accurate at the same time.

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.

It is an AI observability and LLM evaluation platform designed to help ML and LLM engineers and data scientists surface model issues quicker, resolve their root cause, and ultimately, improve model performance.

The collaborative testing platform for LLM applications and agents. Your whole team defines quality requirements together, Rhesis generates thousands of test scenarios covering edge cases, simulates realistic multi-turn conversations, and delivers actionable reviews. Testing infrastructure built for Gen AI.

Practice your interview skills with AI-powered interviewers. Simulate real interview scenarios and improve your performance. Get instant feedback. Get complete overview and a plan with next steps to improve.

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

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.

The most advanced, consistent, and effective AI humanizer on the market. Instantly transform AI-generated text into undetectable, human-like writing in one click.

Vivgrid is an AI agent infrastructure platform that helps developers and startups build, observe, evaluate, and deploy AI agents with safety guardrails and global low-latency inference. Support for GPT-5, Gemini 2.5 Pro, and DeepSeek-V3. Start free with $200 monthly credits. Ship production-ready AI agents confidently.

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

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.

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 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 the leading observability platform trusted by high-performing teams to help maintain the quality and performance of ML models, LLMs, and data pipelines.

Extract text from images and PDFs with 99.9% accuracy. Supports handwriting recognition and 100+ languages. No registration required. Best free AI-powered OCR solution.

Create stunning PPTs instantly with MagicSlides, the best AI PPT maker. Turn text, PDFs, YouTube, & URLs into ready-to-use presentations in 136+ languages.

Helps businesses rank and get cited in AI answer engines like ChatGPT, Perplexity, Claude, and Gemini. Get your AI visibility score today.

AI-native observability platform for LLMs & agents

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

TestDino is an AI-native, Playwright-focused test reporting and management platform with MCP support. It enables Claude Code, Cursor, and LLM-based querying to navigate Playwright reporting, analyze flaky trends, compare environments, and sync complete run context into Jira or Asana.

Citedify audits how your brand appears in ChatGPT, Claude, Perplexity, and Google AI. It provides an AI Visibility Score, reveals which competitors AI recommends instead of you, and delivers a concrete roadmap to improve your presence in AI search results.

Professional JSON tool with auto-fix, TypeScript/Python/Go code generation, SQL export, diff comparison, chart visualization, and schema validation. Free online JSON formatter and beautifier.

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!

Resize and compress multiple images at once with ProBatchResizer. Free online batch image resizer for JPG, PNG, WEBP – Fast Secure Private featuring 130+ pre-build smart presets.

It is an AI Management platform that accelerates the transition of any SaaS company to an AI-native model. With just 5 lines of code, it enables the integration, orchestration, and control of AI agents in production, with full traceability, cost control, and automated evaluation.

Track your brand visibility across AI engines like ChatGPT, Claude, Perplexity, Gemini and more. Optimize your content to get mentioned by AIs.

Content True is a SaaS platform and developer tool designed to ensure content authenticity. It provides accurate AI text detection algorithms that can be integrated into content workflows. Ideal for webmasters, developers, and enterprises looking to verify content quality and origin at scale.

Instantly convert your photos to HD quality with the Upscayl AI Image Upscaler. This Upscayl Models enhances blurry, pixelated, or low-resolution photos to stunning 4K resolution in seconds — the Upscayl Image and Upscayl ai image upscaler you can rely on.

Convert fonts online free. 8 formats, 56 conversions: TTF to WOFF2, OTF to WOFF, and more. Auto CSS, batch processing, subsetting. Private, no signup.

Is this image AI-generated? Free AI detector with 99.7% accuracy detects fake photos, deepfakes, and AI images from DALL-E, Midjourney, Stable Diffusion. No signup required.

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.

CI failures are painful to debug. SentinelQA gives you run summaries, flaky test detection, regression analysis, visual diffs and AI-generated action items.

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

Test

Easily host and share test reports. Gaffer saves developers time and improves test visibility.

Provides comprehensive AI validation and certification services. Get instant AI trust scores, secure badges, and compliance reports. Validate your AI systems for transparency, data protection, governance, and user control. Trusted by startups and enterprises worldwide.

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.