Embed automated document accessibility validation into your tech stack.
Grackle GO API connects your software platforms directly to the Grackle Go validator engine. Send documents programmatically via standard REST calls and receive structured JSON or finished PDFs back, bypassing months of custom engine development while maintaining full UI control.
Self-Serve API Keys • SOC 2 Type 2 Certified • TLS 1.2+ & AES-256
Show Transcript
Video Transcript: Grackle GO The Online PDF Accessibility Validator
Welcome to Grackle GO, the online PDF accessibility validator.
Grackle GO is a free-to-use, browser-based platform designed to see if your documents meet the rigorous PDF ISO standards commonly known as PDF/UA. Grackle GO delivers unparalleled access by offering comprehensive PDF/UA checks, ensuring that your documents meet global accessibility standards. Every PDF is thoroughly evaluated for all machine-testable checkpoints so nothing is left to chance.
Simply upload your PDF via the Grackle dashboard and let Grackle GO take the strain. Once your PDF has been evaluated, you can easily document and share the results. Grackle GO’s printable accessibility detail report gives you a concise, clear snapshot of your PDF’s compliance status. Now you can show your accessibility efforts with confidence.
What sets Grackle GO apart? It’s incredibly easy to use and works across all devices with no software installation required. Whether you’re on a PC, Mac, Chromebook, or even a tablet, Grackle GO works seamlessly in your browser—anytime, anywhere.
And all of this is free. Grackle GO is the ultimate solution for ensuring your PDFs are accessible and compliant. It’s fast, flexible, and fits into any workflow.
So why wait? Experience the future of PDF accessibility with Grackle GO.
Stop building complex accessibility parsers in-house. Integrate enterprise-grade document validation into your pipeline today via a Grackle GO API key.
Ship in days, not months.
Avoid spending quarters of senior engineering time building and maintaining custom document validation parsers. Integrate our production-ready REST API out of the box to accelerate time-to-market without adding engineering maintenance debt.
Infinite programmatic scale.
Scale document accessibility across millions of files automatically. Headless validation runs seamlessly as backend infrastructure across your publishing engines, build pipelines, and digital asset management platforms.
Complete control over your user experience.
We supply the clean JSON engine output; you own the front-end user experience. Surface validation results directly within your custom interfaces, dashboards, and portals using your own design system and brand language.
Trusted by software architects, product leaders, and engineering teams across SaaS platforms, Enterprise software, and Regulated Industries.
• Comprehensive PDF/UA Evaluation
• Deep Tag Tree Analysis
• One-Click Compliance Reports
• Lightweight Validation Workflow
Who is Grackle GO API for?
High-performance developer infrastructure for document accessibility.
Downloadable Compliance Outputs
Request finished PDF responses alongside raw JSON data to instantly provide downloadable compliance documentation without building custom PDF rendering pipelines.
RESTful HTTPS Integration
Connect directly to the Grackle Go validation engine over standard HTTPS REST calls. Send documents automatically from backend build systems, publishing pipelines, and digital asset platforms.
Ingestible Data Architecture
Receive comprehensive JSON responses containing complete validation data. Ingest raw metrics directly into your application backends, custom database structures, or internal automated testing suites.
Frequently Asked Questions
- Why should we buy the Grackle Go API instead of building an open-source validation engine in-house?
Building a basic checker in-house is easy, but maintaining it isn’t. Open-source checkers lack ongoing support for complex PDF edge cases, changing WCAG/PDF/UA regulatory specs, and high-concurrency enterprise pipelines. Buying Grackle Go API gives you immediate access to a mature, SOC 2 Type 2 certified engine with zero ongoing maintenance debt, saving hundreds of engineering hours.
How much technical integration effort is required on our side?
Grackle Go API is developer-first infrastructure, requiring client-side engineering to integrate. Your team simply makes authenticated HTTPS REST calls, parses the incoming JSON payload, and renders the data in your interface. If you need turnkey desktop or browser tools without developer overhead, Grackle Go, Workspace, Office, or dashboard products are available.
How does authentication and key management work for system calls?
Provisioning is instant. Generate, rotate, or revoke API keys directly inside your Grackle dashboard without waiting on sales tickets. All calls are secured using TLS 1.2+ encryption in transit and AES-256 at rest, with rate limits and usage tracked transparently against your plan.
Hardened infrastructure for production environments.
SOC 2 Type 2 Certified & GCP Hosted
Hosted on Google Cloud Platform with strict SOC 2 Type 2 compliance, AES-256 encryption at rest, and TLS 1.2+ protocols in transit to guarantee system integrity.
WCAG 2.1 AA & PDF/UA Alignment
Engine checks map directly to WCAG 2.1 AA and PDF/UA specifications, providing accurate validation needed to support Section 508, EAA, and AODA compliance.
Enterprise Trust Center Verified
Built in alignment with the GrackleDocs Trust Center, offering available HECVAT documentation and standard security responses for streamlined vendor approvals.
Target Deployment Environments
- Government Infrastructure
- Education Systems
- Enterprise Platforms
- Financial Services
- Saas Platforms
Turn document accessibility into automated infrastructure.
Looking for Off-the-Shelf Apps?
