Free · No signup · Client-side only

Turn messy data into clean, structured goldmines

Upload your broken CSV and get a perfectly clean file in seconds. Fix encoding, delimiters, duplicates, and more. No config required.

Drop your CSV here

or click to browse

CSVTSVTXT
100% LOCAL · ZERO SERVER CONTACT · YOUR CPU ONLY

MAX 50MB · WORKS OFFLINE · NOTHING UPLOADED

How it works

Upload → Fix → Download in 3 steps

01

Drop your file

Drag & drop your broken CSV. We accept CSV, TSV, and TXT files up to 50MB.

02

We detect and fix

Encoding, delimiters, quotes, BOM, empty rows, whitespace — all repaired automatically.

03

Download clean data

Get your clean, structured CSV in seconds. See exactly what changed before downloading.

What we fix

Everything your CSV needs. Nothing more.

We remove the cognitive load between your messy file and the moment your work begins.

Fix Encoding Instantly

UTF-8, Windows-1252, latin1, UTF-16 — we detect and repair automatically. No manual config.

Auto-Detect Delimiters

Commas, semicolons, tabs, pipes — we detect the correct delimiter and normalize your file.

Remove Duplicates

Exact match or column-subset dedup. Smart detection of email, ID, and phone key columns.

Merge CSV Files

Upload multiple files. Auto-align mismatched column names. Output one unified dataset.

3-Second Results

Upload → detect → fix → download. No config. No account. No waiting. Pure speed.

Privacy First

Files are processed entirely in your browser. Nothing is uploaded to our servers. Ever.

Zero-server architecture

Your data never leaves your machine

We don't just "not store" your data — we can't even see it. The entire repair engine runs in your browser. No uploads. No transit. No logs.

Privacy by Design

No backend database for user files. No server-side processing. Structra is a stateless pass-through tool that transforms data entirely in JavaScript on your device.

100% Offline Capable

Try it: load the page, turn off your WiFi, and drop a file. It still works because your CPU does the processing, not our server.

Install as Desktop App

Click "Install" in your browser to add Structra to your desktop or home screen. Works like a native app — no browser chrome, no cloud dependency.

Read the Technical Deep Dive →

Automatic detection

We handle every CSV problem you've ever cursed at

80% of CSV pain comes from a handful of predictable problems. Structra detects and repairs all of them without asking you a single configuration question.

Fix My CSV Now →
  • UTF-8 encoding errors
  • Semicolon vs comma delimiter confusion
  • Windows CRLF line endings
  • BOM (Byte Order Mark) characters
  • Unescaped quotes in fields
  • Extra metadata rows at the top
  • Trailing whitespace in cells
  • Empty rows throughout the file
  • Null byte characters
  • Windows-1252 → UTF-8 conversion

Ready to clean your data?

No account. No upload. No waiting. Just clean data.

Fix My CSV Free →Remove Duplicates →