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AddTransit
GTFS Manager
Travic
Browser-based GTFS viewer and analysis tool for transit developers, planners, and agencies. Visualize routes and stops on a map, inspect schedules in structured tables, and run spatial analysis with GeoJSON/KML overlays — no setup or account needed.

Website, pricing, platforms and company facts side by side.
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| Website | opalstack.com | transit-lens.com |
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| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Opalstack yet.
TransitLens is a browser-based GTFS viewer and analysis tool built for transit developers, planners, analysts, consultants, and agencies. What you can do: - Load any GTFS feed by dropping in a ZIP file or pasting a feed URL - Visualize all routes and stops on an interactive map, with filtering by...
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As answered by people managing Opalstack and TransitLens.
TransitLens's answer:
Transit developers and GTFS engineers who need to inspect and debug feeds, planners and analysts reviewing service coverage or schedules, transit consultants validating agency data, and researchers exploring public transit networks. Anyone who regularly works with GTFS files and wants a fast, zero-setup way to explore them visually.
TransitLens's answer:
Most GTFS tools require installation, a local server, or technical setup. TransitLens works instantly in any modern browser — just open the URL, drop in your feed, and start exploring. It combines a map view, structured data tables, schedule calendar analysis, and spatial overlay support in one place, with no friction between you and the data.
TransitLens's answer:
TransitLens runs entirely in the browser with no server-side processing. It uses Leaflet for interactive mapping, and all GTFS parsing, filtering, and analysis happens client-side in JavaScript. This architecture is what makes the zero-setup, privacy-preserving experience possible.
TransitLens's answer:
TransitLens is the only tool that lets you explore a GTFS feed completely in the browser — no installation, no server, no account required. Drop in a ZIP file or paste a feed URL and instantly get an interactive map of all routes and stops, structured table views of every GTFS file, service calendar heatmaps, and GeoJSON/KML polygon overlays for spatial analysis. Everything runs client-side, which means your data never leaves your machine.
TransitLens's answer:
TransitLens was built out of a frustration shared by many people who work with transit data: inspecting a GTFS feed without writing code was surprisingly hard. Existing tools either required heavy setup, were limited to a single view, or weren't built for the people actually working with the data day-to-day. TransitLens was designed to remove all that friction — a single browser tab that gives you the full picture of any GTFS feed instantly.
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