Free Online File and Data Viewers
Open and read structured data without installing anything. Files stay on your device.
3 tools in this section
Hex Viewer Online - View File Hex Dump
Upload a file and view its hexadecimal dump with ASCII representation. Free online hex viewer and editor.
View CSV Files Online - Sortable Table Viewer
Upload a CSV file and view it as a sortable, filterable table. Free online CSV viewer with search.
JSON Viewer Online
View and read JSON online with clean indentation and syntax highlighting. Free JSON viewer that runs in your browser, no upload.
Full Tool Pages
About These Tools
Every tool in this section is free and runs entirely in your browser on ToolBox. There are no uploads, no accounts, and no usage limits, so your files and data stay on your own device. Browse the full tool directory for everything else.