Protected-engine CSV

Drop your CSV and download a corrected version.

Drop a CSV or TSV and get an actionable diagnosis. The engine runs protected in PiojoCSV; file content is not stored or sent to analytics.

Analyze my CSV

10 MB max. 50,000 rows 250 columns No signup

Waiting for a file. The file name is not stored or included in the report.

Report

Safe, reusable diagnosis.

Samples are shown truncated. The rules explain what failed, where to look, what was corrected, and what should not be guessed before touching the destination system.

No analysis yet.

Upload a file or use the synthetic example to see the JSON contract in action.

Common CSV problems

If you arrived with a specific error, these guides explain what to check and when it is worth downloading a safe correction.

View all CSV guides

Delimiter CSV separated by semicolons When Excel and the destination system use different locales. Encoding UTF-8 BOM and strange characters To detect broken accents or headers with invisible marks. Headers Duplicate columns Before two columns with the same name get mixed. Safety Formula-like values Signals such as =, +, - or @ at the start of a cell. Shape Short, long, or badly quoted rows To locate missing fields, extra fields, or quote problems.

Privacy contract

Input: CSV or TSV sent temporarily to the protected engine.
Output: Stable JSON and corrected CSV when repairs are deterministic.
Privacy: No persistent storage, no content analytics, no file names in reports, and no durable file cache.
Outside this version: API pública, historial y cuentas se evaluarán aparte con límites antiabuso, autenticación y logs sin contenido.

Fair access, no surprises.

You can try the diagnosis and download safe corrections for free. To manage costs, measure real use, and keep access fair without pressuring people, corrected downloads have a generous local daily limit and one extra download through a rewarded message.

The rewarded unlock does not read your file. If a real ad network is connected, it will use consent, a clear reward, and a visible policy before loading external scripts. Voluntary support, when active, opens an external payment page; Piojo Lab does not store card data.

Legal notice

Piojo Lab generates automatic checks to help you detect common issues before importing data. It does not guarantee compatibility with every destination system or replace human review when a file contains figures, operations, regulated data, or critical information.

Review the corrected CSV before importing it. You use this tool under your own responsibility, and the current rules may not cover every case in your system.