View Any Data File Instantly

Free, secure, client-side viewers for CSV, JSON, Excel, 3D models, maps, documents, and 30+ file formats. Your data never leaves your device.

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🔒 100% Private ⚡ Instant Processing 🌐 No Server Upload

Data File Viewers

Choose a viewer to get started - all processing happens in your browser

CSV Viewer

View comma-separated values files with automatic delimiter detection and table preview.

Open CSV Viewer → { }

JSON Viewer

Explore JSON data with syntax highlighting, collapsible tree view, and search.

Open JSON Viewer → 🗺️

KML Viewer

View Keyhole Markup Language geographic data with placemarks and coordinates.

Open KML Viewer → 📦

KMZ Viewer

Extract and view compressed KML archives with embedded resources.

Open KMZ Viewer → 🔷

Parquet Viewer

Inspect Apache Parquet columnar data files with schema and metadata preview.

Open Parquet Viewer → 📷

EXIF Viewer

Extract camera info, GPS coordinates, timestamps, and more from images.

Open EXIF Viewer → 🗃️

DBF Viewer

View dBASE database files commonly used with shapefile GIS data.

Open DBF Viewer → 🗄️

SQLite Viewer

Browse SQLite database files, view tables, schema, and data directly in your browser.

Open SQLite Viewer → 📊

Excel Viewer

View Excel spreadsheets (XLSX/XLS) with multiple worksheets and formatting.

Open Excel Viewer → 📑

PDF Metadata Viewer

Extract title, author, creation date, and other metadata from PDF documents.

Open PDF Metadata Viewer → ▶️

YouTube Data Viewer

Explore YouTube API responses and Google Takeout watch history exports.

Open YouTube Data Viewer →

3D Model Viewers

View 3D models directly in your browser with interactive controls

STL Viewer

View 3D printing STL files with rotate, zoom, and wireframe controls.

Open STL Viewer → 🧊

OBJ Viewer

View Wavefront OBJ 3D model files with material support.

Open OBJ Viewer → ✨

GLTF/GLB Viewer

View GLTF and GLB 3D models with PBR materials and animations.

Open GLTF Viewer → ☁️

PLY Viewer

View PLY point clouds and meshes from 3D scanning and LiDAR.

Open PLY Viewer →

Map & GIS Viewers

Visualize geographic data on interactive maps

GeoJSON Viewer

View GeoJSON geographic data on an interactive map with feature properties.

Open GeoJSON Viewer → 🥾

GPX Viewer

View GPS tracks, routes, and waypoints with elevation and distance stats.

Open GPX Viewer → 🗺️

Shapefile Viewer

View ESRI Shapefiles on an interactive map with attribute tables.

Open Shapefile Viewer →

Document & Media Viewers

View documents, images, and fonts without installing software

DOCX Viewer

View Word documents with formatting, tables, and images - no Office needed.

Open DOCX Viewer → 🎨

SVG Viewer

Preview and inspect SVG vector graphics with code view toggle.

Open SVG Viewer → 📱

HEIC Viewer

View and convert iPhone HEIC photos to JPEG instantly.

Open HEIC Viewer → 🔤

Font Viewer

Preview TTF, OTF, WOFF fonts with sample text and character map.

Open Font Viewer → 📝

Markdown Viewer

Render Markdown files with GitHub Flavored Markdown support.

Open Markdown Viewer → 🏥

DICOM Viewer

View medical images (CT, MRI, X-ray) securely in your browser.

Open DICOM Viewer →

Developer & Config Tools

View configuration files, network traces, and data formats

XML Viewer

Explore XML files with collapsible tree view and attribute display.

Open XML Viewer → ⚙️

YAML Viewer

View YAML configs (Kubernetes, Docker, CI/CD) with tree view.

Open YAML Viewer → 🔧

TOML Viewer

View TOML config files (Cargo.toml, pyproject.toml) with tree view.

Open TOML Viewer → 🌐

HAR Viewer

Analyze HTTP Archive files with request list and status breakdown.

Open HAR Viewer → 🔶

Avro Viewer

View Apache Avro data files with schema inspection and records.

Open Avro Viewer → 📅

ICS Viewer

View iCalendar events, meetings, and schedules from .ics files.

Open ICS Viewer → 👤

vCard Viewer

View VCF contact files with phone, email, and address details.

Open vCard Viewer →

Why DataViewer?

Built with privacy, speed, and simplicity in mind

🔒

100% Private

Your files are processed entirely in your browser. Nothing is ever uploaded to our servers.

⚡

Lightning Fast

Instant file processing using optimized JavaScript parsers. No waiting for server responses.

🎯

30+ Formats

Support for CSV, JSON, Excel, 3D models (STL, OBJ, GLTF), maps (GeoJSON, GPX), documents, and more.

📱

Works Everywhere

Fully responsive design works on desktop, tablet, and mobile devices with any modern browser.

♿

Accessible

Built with accessibility in mind. Keyboard navigation and screen reader support throughout.

💰

Completely Free

No accounts, no subscriptions, no limits. Just drag, drop, and view your data.

How It Works

Three simple steps to view your data

1

Choose a Viewer

Select the viewer that matches your file type from our collection of 30+ specialized tools.

2

Drop Your File

Drag and drop your file or click to browse. Files are processed instantly in your browser.

3

Explore Your Data

View, search, and analyze your data with our intuitive interface. No installation required.

Frequently Asked Questions

Is my data safe?

Yes! All files are processed 100% client-side in your browser. Your data never leaves your device and is never uploaded to any server.

What file formats are supported?

We support 30+ formats including CSV, JSON, Excel, SQLite, Parquet, PDF metadata, 3D models (STL, OBJ, GLTF/GLB, PLY), maps (GeoJSON, GPX, Shapefile, KML, KMZ), documents (DOCX, Markdown, SVG), config files (XML, YAML, TOML), images (EXIF, HEIC, DICOM), fonts (TTF, OTF, WOFF), and more (HAR, ICS, vCard, Avro).

Are there file size limits?

Yes, to ensure smooth browser performance: CSV/DBF/Excel up to 50MB, JSON/YouTube data up to 20MB, KML/PDF up to 30MB, KMZ up to 50MB, Parquet/SQLite up to 100MB, and images up to 30MB.

Do I need to create an account?

No! DataViewer is completely free to use with no registration required. Just open a viewer and drop your file.

Which browsers are supported?

DataViewer works in all modern browsers including Chrome, Firefox, Safari, and Edge (version 90+).

Can I use DataViewer on mobile?

Yes! Our responsive design works great on smartphones and tablets. Just visit the site and upload your files.