Make Your Maps Accessible to Everyone
AI-powered descriptions for ArcGIS web maps. Generate comprehensive, screen-reader-friendly alternative text that helps blind and low-vision users understand your geographic data.
See It In Action
Explore real examples of AI-generated map descriptions. Each description is tailored to the map's content and designed for screen readers.
Generated Description
AI-generated alt textMAP SUMMARY
Map Title: Portland Tree Planting Priority Areas
Purpose: This map identifies geographic areas within and around Portland, Oregon that would benefit most from additional tree planting. The analysis integrates three critical factors: heat wave risk at the census tract level, surface-level heat severity (measured 1–5 scale), and existing tree coverage.
Geographic Extent: Regional view centered on Portland, Oregon and surrounding metropolitan area. The map covers approximately 219 miles east-west and 189 miles north-south at a 1:1,155,581 scale.
KEY TRENDS AND PATTERNS
Heat severity shows significant urban-rural disparity, with the highest temperatures concentrated in Portland's urban core, particularly in East Portland, Northeast Portland, and industrial areas along the Willamette River. The coastal counties consistently show the lowest heat severity values, benefiting from maritime climate moderation.
LANDMARKS
Major Jurisdictional Boundaries
Portland City Boundary (white polygon with black outline):
- Central feature of the map
- Located in northwest Oregon, east of the Coast Range
- Bounded by the Columbia River to the north
Visible Counties:
- Clatsop County (northwest corner): Low heat severity (yellow)
- Columbia County (north-central): Mixed orange to red heat severity
- Washington County (west of Portland): Predominantly orange heat severity
- Multnomah County (contains Portland): High variability—red and orange patches
COMPLIANCE METADATA
Accessibility Standards Met:
- ADA Title II (April 2026) – Non-visual equivalent provided
- WCAG 2.1 § 1.1.1 Non-Text Content (Level AA)
#MapALT #ADA_TitleII #UrbanHeatIsland #TreePlanting #Portland
How It Works
Generate accessible map descriptions in four simple steps
Sign In with ArcGIS
Use your existing ArcGIS Online account to securely access your web maps. No additional registration required.
Select Your Map
Browse your maps, your organization's maps, or public ArcGIS maps. Navigate to the exact view you want to describe.
Generate Description
Click generate and watch as AI analyzes your map's visual elements, layers, and metadata to create a comprehensive description.
Copy & Use
Copy the generated description as Markdown or HTML. Use it as alt text, in documentation, or anywhere accessibility is needed.
A Step Toward Accessible Web Maps
Purpose-built for GIS professionals working toward accessibility standards without becoming accessibility experts.
Designed with ADA Title II in Mind
Generated descriptions are informed by current ADA Title II web accessibility guidance and evolving best practices.
WCAG 2.1 Level AA
Descriptions are designed to address Success Criterion 1.1.1 for non-text content by supporting equivalent purpose.
AI-Powered Analysis
Claude AI analyzes both visual content and layer metadata to create accurate, contextual descriptions.
Real-Time Streaming
Watch descriptions generate in real-time with streaming output. No waiting for batch processing.
Multiple Export Formats
Copy descriptions as Markdown for documentation, HTML for direct embedding in web pages, or plain text for screen readers.
Secure ArcGIS Auth
Sign in with your existing ArcGIS Online credentials. We never see or store your password.
Scale-Aware Descriptions
Descriptions adapt to zoom level—from country-wide overviews to street-level details.
Generation History
Access your generation history anytime. Review, copy, or delete past descriptions. Retention varies by plan.
Simple, Transparent Pricing
Start free, upgrade when you need more capacity
Free
Try it out
- 3 maps total (lifetime)
- 7-day history
- ArcGIS Online
Starter
Small cities & counties
or $499/year (save 15%)
- 25 maps/month
- 90-day history
- ArcGIS Online
Professional
Mid-size agencies
or $1,999/year (save 16%)
- 150 maps/month
- 1-year history
- ArcGIS Online
Enterprise
Large organizations
- Unlimited maps
- Unlimited history
- ArcGIS Enterprise support
- Dedicated support
All plans include Markdown, HTML, and plain text export and are designed to support WCAG 2.1 Level AA accessibility efforts.
Have questions? Check our FAQ or contact us.
Frequently Asked Questions
Everything you need to know about Accessible Map Agent
General Questions
Accessible Map Agent is a web application that generates alternative-text descriptions for ArcGIS web maps designed with ADA Title II requirements in mind. Using AI, it analyzes your map's visual content and creates detailed descriptions that can be used as alternative text, helping blind and low-vision users understand the geographic information your maps convey.
This tool is designed for GIS professionals working to improve the accessibility of their web maps, government agencies preparing for ADA Title II compliance (effective April 2026), organizations working toward WCAG 2.1 accessibility standards, and anyone who wants to make their maps more inclusive.
Our generated descriptions are designed to support ADA Title II web content accessibility requirements (effective April 2026), WCAG 2.1 Success Criterion 1.1.1 (Non-Text Content, Level AA), and Section 508 federal accessibility standards. The descriptions aim to provide an "equivalent purpose" alternative—conveying the same spatial understanding a sighted user would gain from viewing the map. As with any AI-generated content, we recommend reviewing and editing descriptions before use.
Maps and Data
You can generate descriptions for any ArcGIS Online web map that you have access to view. This includes maps you created, maps shared with your organization, and public maps. The map must be accessible through ArcGIS Online's web map viewer.
Yes, but with an important caveat: when you generate a description, a screenshot of your map is sent to an AI service (Anthropic's Claude) for processing. If your map contains sensitive or confidential data, that data will be visible in the screenshot. We recommend only generating descriptions for maps you're comfortable sharing with a third-party AI service.
The AI can describe most layer types effectively: feature layers (points, lines, polygons), tile layers and basemaps, thematic maps with color-coded data, and heat maps and density visualizations. Complex 3D scenes or heavily animated maps may not describe as accurately.
Generation Process
You navigate to the map view you want described. The app captures a screenshot and gathers layer metadata. This information is sent to Claude (an AI model by Anthropic). The AI analyzes the visual content and metadata. A comprehensive text description is generated and streamed back to you.
The AI produces high-quality descriptions, but they should be treated as a starting point—not a final product. AI can make mistakes, so we strongly recommend reviewing every generated description for accuracy, editing any details specific to your organization or use case, and verifying that key features are correctly identified before publishing.
Absolutely! You can copy the description as Markdown, HTML, or plain text and edit it in any text editor. We encourage you to customize the descriptions for your specific needs.
Usage and Pricing
Each organization gets 3 free map descriptions total (lifetime). This is shared across all users in your ArcGIS organization. Free tier descriptions are retained for 7 days.
One generation = one completed description. Each time you click 'Generate Description' and receive a result, that counts as one generation. Canceling a generation before it completes does not count against your quota.
We offer subscription plans for organizations that need more capacity. Starter ($49/month) includes 25 maps/month with 90-day history. Professional ($199/month) includes 150 maps/month with 1-year history. Enterprise plans offer unlimited maps with unlimited history. All paid plans are shared across your entire organization. Visit the Settings page after signing in to request a subscription.
Data and Privacy
By default, map screenshots and layer data are NOT stored—they are sent to the AI service for processing, used to generate the description, then discarded. However, you can opt in to share your map screenshots with dymaptic to help us improve our generation quality. If you enable this option, screenshots are stored securely and may be reviewed by our team to enhance future descriptions. What IS always stored: your account information (from ArcGIS), the generated description text, and the map title and ID.
Description retention depends on your subscription tier: Free tier retains descriptions for 7 days, Starter for 90 days, Professional for 1 year, and Enterprise has unlimited retention. You can also manually delete descriptions at any time from your history page.
No. Anthropic's API does not use your inputs to train their models. Your map data is processed and then deleted.
Still have questions?
Can't find the answer you're looking for? Reach out to our team.
Contact support