Octopus Scanner (formerly A11y Scanner)

Overview

Octopus Scanner combines browser automation with axe-core auditing and can record and replay authenticated flows such as logins and checkouts without code. That makes it more useful for examining interactive sites than a checker limited to a single public page. It also audits dynamic interfaces, Shadow DOM, embedded frames, dark mode, and the structure of linked PDFs.

Scanning, analysis, and reporting stay entirely local, a meaningful advantage when working with private or authenticated sites. The trade-off is that this is a desktop application, not a browser extension. Setup supports WCAG 2.2, Section 508, and EN 301 549; those standards do not make automated findings a substitute for human accessibility evaluation.

Key features

• Recorded journeys: Capture and replay flows such as logins and checkouts without writing code. This can bring checks to parts of a site that a simple landing-page scan would miss.
• Dynamic content and documents: Coverage includes Shadow DOM, embedded frames, dark mode, and structural checks on linked PDFs. That range suits layered interfaces and document-heavy sites better than a page-only workflow.
• Reports and portability: Each scan produces an interactive HTML report and a companion CSV. Configurations can be imported or exported between machines or team members, which helps teams share settings without moving scan analysis off-device.
• Network and update controls: HTTP, HTTPS, and SOCKS proxy support routes scanned-site traffic through the proxy. Optional updates can be checked against official checksums and signatures and reverted, giving users more control over update verification.

Pricing

Octopus Scanner is free to download; optional contributions support its independently developed release. The “Name your own price” plan is free, and the “Free software” plan has no listed price; donations are optional. A one-time “Support contribution” costs 1.00 USD, with optional amounts of $1, $2, $5, and $10.

There is no required paid tier or stated scan quota, so the free offering is the natural choice for individual auditors and teams that can work with a desktop tool. No trial or refund policy is stated. The software is marked beta, so it is a less suitable choice when a production workflow depends on a release explicitly marked stable.

Platforms

Octopus Scanner is available for Windows and macOS, but the downloads are architecture-specific: Windows is 64-bit and macOS is ARM64. Check that your machine matches before choosing it. There is no browser extension, so readers who want checks inside a browser should consider another tool.

Who it's for

Octopus Scanner is a strong fit for people auditing authenticated or interaction-heavy sites who want local processing, journey replay, PDF structure checks, and exportable reports without a software fee. Proxy support and shareable configurations also suit teams with managed network or repeatable setup needs. It is a weaker fit for browser-extension workflows, unsupported download architectures, or teams that require a stable release.

Pros and cons

• Pro: Local scanning, analysis, and reports keep data from being transmitted externally, useful for private-site audits.
• Pro: Journey replay, dynamic-interface coverage, and linked-PDF checks reach beyond a basic public-page scan.
• Pro: Interactive HTML reports, companion CSVs, and portable configurations support review and team handoff.
• Con: Beta status may deter users who need a stable release for a dependable ongoing workflow.
• Con: Windows 64-bit and macOS ARM64 downloads limit its fit on machines with other architectures.
• Con: It is a desktop app rather than a browser extension, so it does not fit users seeking in-browser checks.

Alternatives

For a broader set of website accessibility options, see Website Accessibility Tools. Choose WAVE instead if its API, extension, Linux, web, or Windows platform coverage better fits your workflow; its subscription API starts at 10.00 USD per month with a 250-credit minimum purchase. Axe DevTools offers a free extension plan for one page at a time, a better match for focused page checks than Octopus Scanner’s desktop journey workflow.

Pope Tech may suit teams that want a web-based free tier with 25 pages, 2 users, 1 website, and 1 group. AccessLint is another freemium option with a free trial and web, macOS, and extension platforms. A11yInspect is worth considering for a free extension-based option that also supports Linux, macOS, and Windows. ADA Scanner fits readers who prefer a metered service: its free plan includes 25 scans a month, while its Starter plan is 9.00 USD per month for 250 scans, 10 pages, and 1 site. AccessMonitor is a free web option with online validation and a Chrome extension that requires no account. Free Website Accessibility Checker offers a free one-page-at-a-time plan, with a Small Site plan at 9.00 USD per month for 100 pages.

Verdict

Choose Octopus Scanner if you need free, local accessibility checks across authenticated journeys, dynamic interfaces, or linked PDFs. Its combination of replay, broad audit coverage, and local reports is its clearest reason to choose it. Look elsewhere if you need a browser extension, your device does not match its download architecture, or beta software is unsuitable for your workflow.