Car Camera Route Studio

Local, dependency-light route viewer for dashcam TXT, GPX, and GeoJSON files.

Features

• Date and time range filtering
• Leaflet map with start/end markers
• Route replay with inactive gaps compressed
• Cleaned, raw, and calculated speed views
• Heading, altitude, and sensor charts
• GPX and GeoJSON exports
• Incremental imports for growing dashcam TXT files

Run

Requires Node.js 22.6+.

pnpm start

Open http://127.0.0.1:4173.

Add data

Place .txt, .gpx, .geojson, or .json files in data/input/, then run:

pnpm import

Use pnpm import -- --force to rebuild the generated cache.

Cleaned speed defaults to a 130 km/h plausibility ceiling. Set MAX_SPEED_KMH when importing to change it.

See docs/formats.md for supported fields and extension guidance.

Preview screenshots and videos can be added to assets/images/ and assets/videos/.

Supported formats

Dashcam TXT — GPSData*.txt, $V02 records

Built and tested against a 70mai Dash Cam 4K A810 (GPSData000001.txt style logs). Any dashcam or GPS logger writing the same $V02 comma-separated line format — timestamp, fix status, lat, lon, speed, heading, plus sensor and video filename fields — should work without changes.

GPX — standard, any device or app

Not tied to a brand. Reads trkpt, rtept, and wpt points with time, elevation, speed, course/heading, and name — the same subset exported by Garmin, Strava, GaiaGPS, and most GPS units.

GeoJSON — standard, any source

Not tied to a brand. Reads Point, MultiPoint, LineString, and MultiLineString geometries (raw or inside Features/FeatureCollections), with optional timestamps, speeds, headings, and sensor/video properties if present.

Full field-level detail is in docs/formats.md. GPX and GeoJSON are open standards, so this should already work with most dashcams and GPS trackers that export either — if yours doesn't parse, open an issue with a sample.

Contributing

• Open an issue describing the change you want to make and wait for it to be approved before starting work.
• Fork the repo and create a branch for that one change.
• Keep the pull request scoped to the approved feature only — smaller diffs are easier to review and merge.
• Open the PR against main.

License

Licensed under GNU AGPL-3.0-only. Commercial use is allowed. Modified versions offered to users, including over a network, must keep the license notices and make corresponding source code available under the AGPL.

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Built by People at The Tech Basket.