Blazing fast
Load a million-row CSV in under two seconds. Parallel search, parallel sort, and instant column profiling — even on commodity hardware.
Data at the speed of thought
CSV · Excel · JSON · Parquet · TXT · SQL queries · Cross-platform
Open millions of rows. Edit instantly.
EchoCSV loads a million rows in under two seconds, lets you query with embedded SQL, and exports clean results — without needing Python, a database, or patience. One fast desktop app for every data file you throw at it.
Free tier · No account required · No runtime to install · ~70 MB self-contained.
- 1M rows in ~2 seconds
- Embedded SQL (DuckDB)
- Windows · macOS · Linux
Dataset · transactions-2024.csv
Query your data with SQL
Write SQL directly against any open file. Filter, aggregate, join across tabs — results appear instantly, no database setup required.
Just now
SELECT region, SUM(amount) FROM data GROUP BY region — 1.2M rows · 0.4s
● Live query
DuckDB
Export
Profile
Why EchoCSV
Spreadsheets choke. Scripts take too long. EchoCSV just works.
Excel freezes at 100K rows. Python needs setup. EchoCSV opens anything instantly, lets you query it with SQL, and gets out of your way.
Embedded SQL
Write real SQL queries against your open files using DuckDB. Filter, aggregate, join across tabs — no database server required.
Every format
CSV, Excel (.xlsx), JSON, TXT (any delimiter), and Parquet. Auto-detect encoding and delimiter. Drag and drop to open.
Edit in place
Cell editing with full undo/redo, find and replace (regex), sort, flag rows, and remove duplicates — all without leaving the app.
Column profiling
One-click statistics: min, max, mean, nulls, unique counts, and distribution for every column. Spot data quality issues in seconds.
Truly cross-platform
Native builds for Windows x64, macOS ARM64, and Linux x64. Self-contained — no .NET, Java, or Python runtime to install.
How it feels
From raw file to clean answer.
Drop in your data
Open CSV, Excel, JSON, Parquet, or delimited text files. Auto-detect handles encoding and separators.
Explore & query
Profile columns, sort, search with regex, flag rows, or write SQL to slice the data exactly how you need it.
Export clean results
Save filtered data back to CSV, Excel, or JSON. Compare sheets, deduplicate, and share the clean version.
Our stance
You shouldn't need a data engineering degree to look at a CSV.
Most data tools assume you're a developer. EchoCSV gives analysts, ops teams, and anyone who touches data files the same power — SQL queries, million-row performance, instant profiling — in a clean desktop app that launches in a second.
Get started
Download free. Open anything.
Start with the free tier — no account, no runtime, no limits on file size. Upgrade to Pro when you want SQL queries and advanced export.