MAKE STRUCTURE VISIBLE

Online Data & Database Viewers

Browse CSV, JSON and Parquet data, open SQLite or DuckDB tables, and review HAR network logs. Free, with no uploads, signup or software installation.

Typical uses

Check a dataset, inspect saved records or investigate a network request. Table and database viewers make rows and columns easy to browse without changing the original file.

— Page through JSON and tabular data
— Inspect SQLite and DuckDB tables
— Review HTTP Archive requests and other structured records

Common reasons files do not open

— Malformed or mixed-encoding data can prevent parsing
— Nested records do not always map cleanly to a table
— Large queries and files remain bounded by browser memory

11 FORMATS

Supported formats

Open a file now

.arrow

Arrow IPC data

Browse Arrow data tables, columns and values in your browser. Free, with no uploads, signup or software installation.

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.csv

CSV data

Open CSV files as tables and browse rows, columns and values. Free, with no uploads, signup or software installation.

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.dbf

dBASE table

Read records and columns in supported dBASE and Visual FoxPro DBF tables. Free, with no uploads, signup or software installation.

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.duckdb

DuckDB database

Browse DuckDB tables, columns and saved records without installing database software. Free, with no uploads, signup or software installation.

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.har

HTTP Archive

Review HAR network requests, responses and loading times to troubleshoot slow pages. Free, with no uploads, signup or software installation.

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.json

JSON data

Read JSON with syntax highlighting or browse supported records in a table. Free, with no uploads, signup or software installation.

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.jsonl

JSON Lines data

Browse JSONL and NDJSON records as a table, one page at a time. Free, with no uploads, signup or software installation.

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.kmz

Compressed KML map package

See the map files and images inside a KMZ package. File listing only, not a map preview. Free, with no uploads, signup or software installation.

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.parquet

Apache Parquet data

Open Parquet files to browse columns, data types and rows in a table. Free, with no uploads, signup or software installation.

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.sqlite

SQLite database

Browse SQLite tables, columns and records without installing a database app. Free, with no uploads, signup or software installation.

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.tsv

TSV data

Open TSV files as tables and browse rows, columns and values. Free, with no uploads, signup or software installation.

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Category FAQ

Does opening data execute it?

No. These viewers parse or display selected files and do not run database triggers or embedded application code.