Cloud Storage Explorer
objex
Browse, query and map cloud data in your browser.
100+
File Formats
9+
Cloud Providers
Zero
Backend
Live demos
Parquet Explorer
Browse and visualize Parquet files with geospatial columns on interactive maps. Suitability analysis data rendered directly from S3-compatible storage.
COG Raster Visualization
Cloud Optimized GeoTIFFs rendered with deck.gl-raster and smart metadata detection via geotiff.js. National Land Cover Database (NLCD) 2024 visualized in the browser.
Notebook Viewer
Render Jupyter notebooks directly from cloud storage with full cell output display. Explore data science workflows without downloading anything.
PMTiles Vector Maps
Render PMTiles vector tile archives directly from cloud storage. Full OpenStreetMap worldwide rendered client-side with no tile server required.
Zarr Multidimensional Arrays
Inspect and explore Zarr v2/v3 stores from cloud storage. Browse array metadata, dimensions, and chunks for scientific datasets like GLDAS climate models.
Markdown & Mermaid Rendering
Render Markdown files with Mermaid diagram support and smart LTR/RTL detection for correct multilingual reading. Documentation rendered beautifully from any cloud storage.
Kepler.gl Map Viewer
Load and render Kepler.gl JSON map configurations directly from cloud storage. Copernicus EGMS ground motion data visualized with full Kepler.gl interactivity.
Archive Browser
Browse ZIP archives progressively without downloading or uncompressing. Inspect file trees, sizes, and contents in a clean column view -all streamed lazily from cloud storage.
STAC Catalog Browser
Navigate SpatioTemporal Asset Catalogs directly from cloud storage. Browse collections, items, and assets with spatial previews -no STAC API server needed.
FlatGeobuf Streaming
Stream large FlatGeobuf files with spatial filtering. This 6 GB EUBUCCO building footprint dataset for Austria is rendered progressively as data arrives.
COPC Point Cloud Viewer
Explore Cloud-Optimized Point Cloud (COPC) files directly in the browser. This classified LiDAR dataset from Autzen is streamed and rendered as an interactive 3D point cloud.
Key Features
Multi-Cloud Storage
Connect to AWS S3, Google Cloud Storage, Azure Blob, Cloudflare R2, MinIO, Wasabi, DigitalOcean Spaces, and Storj
In-Browser SQL
Query Parquet, CSV, and JSONL with DuckDB-WASM -cancellable queries with full SQL support, all client-side
Interactive Maps
Visualize GeoParquet, GeoJSON, COG, PMTiles, FlatGeobuf, and Zarr on MapLibre GL + deck.gl maps
Code & Notebooks
Syntax-highlighted code in 30+ languages, Jupyter and marimo notebook rendering, Markdown preview
Point Clouds & Rasters
Explore COPC, LAZ, and LAS point clouds. View Cloud Optimized GeoTIFFs, PMTiles, and Zarr v2/v3 rasters
3D Models & Archives
Preview GLB, glTF, OBJ, STL, and FBX 3D models. Browse ZIP, TAR, GZ, 7Z, and RAR archives
Internationalization
English and Arabic with automatic RTL layout. Designed for accessibility across languages
Privacy First
Zero backend -everything runs in your browser. Credentials stay in memory and are never sent to any server
Supported formats
Tabular
Parquet, CSV, TSV, JSONL, NDJSON
Geo Vector
GeoParquet, GeoJSON, Shapefile, GeoPackage, FlatGeobuf
Geo Raster
COG, PMTiles, Zarr v2/v3
Point Cloud
COPC, LAZ, LAS
Notebooks
Jupyter (.ipynb), marimo
Code
30+ languages (Python, TS, Rust, Go, SQL...)
Documents
Markdown, PDF, text, logs
Media
Images, video, audio
3D
GLB, glTF, OBJ, STL, FBX
Archives
ZIP, TAR, GZ, 7Z, RAR
Database
DuckDB, SQLite
npm Packages
@walkthru-earth/objex
Full Svelte 5 component library with stores and utilities for building geospatial storage explorers.
npm install @walkthru-earth/objex@walkthru-earth/objex-utils
Pure TypeScript utilities -zero Svelte dependency. Works with any JS framework or Node.js.
npm install @walkthru-earth/objex-utilsCC BY 4.0
objex is open-source under CC BY 4.0. Everything runs client-side -your credentials and data never leave your browser.