RFC 7946 Coordinate Precision Coarsening (k-Anonymity)
Rounds sub-millimeter 15-decimal [longitude, latitude] arrays and top-level bbox bounds to 2โ3 decimal places (~1.1 km neighborhood grid) without touching property floats.
Sanitize, format, and process geojson spatial coordinate pre payloads 100% in-browser with zero cloud upload risk.
Process and sanitize Geojsoncoordshield payloads 100% privately inside browser memory
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Supports CSV, JSON, TXT, XML & Log Streams
sed -E 's/(-?[0-9]+\.[0-9]{2})[0-9]+/\1/g' fleet_telemetry.geojson | jq 'del(.features[].properties.driver_email)'โ ๏ธ Why Naive CLI / Regex Fails: Blindly truncating decimal digits with sed corrupts numeric IDs and timestamps inside features[].properties, collapses small Polygon linear rings into self-intersecting degenerate geometries (violating RFC 7946 right-hand rule), and misses nested bbox arrays and Mapbox sk.eyJ* secret tokens.
๐ก๏ธ Pre-LLM & Ticket Safety: How to anonymize a GeoJSON FeatureCollection (truncate exact home/fleet GPS coordinates and scrub properties PII) before pasting into ChatGPT, Claude, or geojson.io
Core capabilities built into GeoJsonCoordShield
Rounds sub-millimeter 15-decimal [longitude, latitude] arrays and top-level bbox bounds to 2โ3 decimal places (~1.1 km neighborhood grid) without touching property floats.
Ensures the first and last [lon, lat] vertex of every Polygon and MultiPolygon ring remain strictly identical after coordinate rounding so PostGIS ST_IsValid passes.
Sanitizes customer_email, phone, device_imei, license_plate, and embedded Mapbox sk.eyJ* / pk.eyJ* tokens inside features[].properties and foreign members.
Stop uploading sensitive fleet or patient delivery trajectories to cloud map viewers; generate GH013-clean GeoJSON fixtures 100% locally.
Zero configuration, zero cloud server dependencies, instant execution.
Drop RFC 7946 .geojson files containing Point, LineString, Polygon, or MultiPolygon telemetry and features[].properties directly into browser RAM.
AST-aware geometry walkers round [lon, lat] tuples and bbox bounds to privacy-safe decimal precision while masking emails, VINs, and Mapbox sk.* keys.
Preview 70% of the sanitized GeoJSON FeatureCollection immediately or unlock 100% export and the air-gapped Offline PRO HTML workstation for $19 one-time.
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| Feature / Metric | ๐ก๏ธ GeoJsonCoordShield | โ๏ธ Cloud SaaS (Mapbox) |
|---|---|---|
| Data Processing Architecture | ๐ก๏ธ 100% Local Browser RAM (Zero Network Upload) | โ๏ธ Cloud SaaS Upload |
| Coordinate Precision & Location Privacy | ๐ก๏ธ Geometry-Only [lon, lat] & bbox Coarsening (Preserves Ring Closure) | โ๏ธ Cloud SaaS Upload |
| features[].properties PII & API Key Scrubbing | ๐ก๏ธ Deterministic Masking of Emails, Device IDs & Mapbox sk.* Tokens | โ๏ธ Cloud SaaS Upload |
| Pre-LLM & Git GH013 Compliance Readiness | ๐ก๏ธ Instant Gitleaks & GH013 Clean GeoJSON Fixture Output | โ๏ธ Cloud SaaS Upload |
Eliminate vendor lock-in and cloud upload security risks.
Why pay monthly recurring SaaS fees for simple geojson spatial tools? Switch to GeoJsonCoordShield for a single $19 buyout.
Mapbox uploads private data to cloud servers. We process 100% locally on your machine.
Process large geojson spatial files instantly without waiting for cloud server roundtrips.
Deep technical breakdown driving our client-side productivity engine.
Processes GeoJsonCoordShield structures directly inside isolated browser memory.
Ensures zero GeoJsonCoordShield bytes touch external API servers or third-party storage.
Parses high-throughput GeoJsonCoordShield records in real-time with sub-millisecond response times.
Full compliance with international privacy mandates through total data sovereignty.
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Everything you need to know about privacy, local memory execution, and buyouts.
Six to fifteen decimal places in WGS84 [longitude, latitude] coordinates pinpoint a person's exact bedroom or clinical visit within millimeters. Under GDPR Art. 32 and HIPAA Safe Harbor, precise home and trajectory coordinates coupled with feature properties constitute protected personal data.
A global regex like sed 's/(\.[0-9]{2})[0-9]+/\1/g' blindly alters floating-point billing amounts, timestamps, and version strings inside features[].properties, and can collapse small Polygon rings so the first and last coordinates no longer match.
Developers frequently export GeoJSON debug snapshots containing Mapbox secret tokens (sk.eyJ*), Google Maps keys (AIza*), or customer PII inside properties. GeoJsonCoordShield scrubs those tokens while coarsening coordinates in one pass.
Yes. GeoJsonCoordShield preserves valid RFC 7946 FeatureCollection structure, geometry types, and LinearRing closure while keeping all property keys intact.
Never. All JSON AST parsing, coordinate quantization, and Canvas spatial bounding-box visualization run 100% locally in your browser RAM with zero network egress.