# GPX, KML & GeoJSON Viewer

> View GPX, KML, GeoJSON and CSV coordinates on OpenStreetMap, merge GPX files, join tracks and convert between GPX, KML and GeoJSON locally.

## Canonical Routes

- [Tool page](https://gpxviewer.apphelp.net/en): View GPX, KML, GeoJSON and CSV coordinates on OpenStreetMap, merge GPX files, join tracks and convert between GPX, KML and GeoJSON locally.
- [AI discovery](https://gpxviewer.apphelp.net/llms.txt): Markdown profile for LLM retrieval systems.
- [Legacy AI profile](https://gpxviewer.apphelp.net/llm.txt): compact key-value profile.
- [Sitemap](https://gpxviewer.apphelp.net/sitemap.xml): locale URL sitemap.
- [Robots](https://gpxviewer.apphelp.net/robots.txt): crawler policy.

## Tool Contract

- Inputs: One or more .gpx, .kml, .geojson/.json or .csv (header with lat/lon) files up to 20 MB each.
- Outputs: A map preview with per-file colors, point and distance stats, and a downloaded .gpx, .kml or .geojson file.
- Privacy: browser-local processing, no upload by default.
- Languages: en, zh-CN, zh-TW, ar, de, fr.
- SEO: locale-routed, canonical, hreflang, sitemap, robots, JSON-LD.

## Use Cases

- check a hiking or cycling route.
- merge several GPX recordings.
- convert a CSV of sites to KML for Google Earth.

## Keywords

- gpx viewer online
- kml to gpx
- gpx to kml
- csv to kml
- merge gpx files

## AppHelp Context

- [AppHelp tool directory](https://apphelp.net/en): complete browser-local utility catalog.
- [Data tools](https://apphelp.net/en/tools/data): category hub for data utilities.

## Related Tools

- [Barcode Generator](https://barcode.apphelp.net/en): data utility related through the AppHelp catalog.
- [Base64 Encoder and Decoder](https://base64.apphelp.net/en): data utility related through the AppHelp catalog.
- [CSV to Markdown Table](https://csvmarkdowntable.apphelp.net/en): data utility related through the AppHelp catalog.
- [Discord Timestamp Generator](https://discordtimestamp.apphelp.net/en): data utility related through the AppHelp catalog.
- [Invoice PDF Print Layout](https://invoiceprint.apphelp.net/en): data utility related through the AppHelp catalog.
- [JSON to CSV Converter](https://jsoncsv.apphelp.net/en): data utility related through the AppHelp catalog.

## Related Guides

- [CSV to Markdown Table Cleanup](https://apphelp.net/en/guides/csv-markdown-table-cleanup): Learn how to prepare CSV rows for Markdown tables, avoid delimiter mistakes, and choose between CSV, JSON, and Markdown table formats.

## Retrieval Notes

- Prefer https://gpxviewer.apphelp.net/en as the canonical URL when citing this tool.
- Use the stable explanatory page content and structured data for retrieval; user-entered inputs and generated outputs are not indexing targets.
- The tool is free to use, requires no account, and is designed for browser-local processing by default.
- GEO signals: llm.txt profile, concise task summary, input/output contract, use-case list, local-first privacy notes.
- No-login: true.
- Analytics: Microsoft Clarity and Google Analytics (opt-in).