Date format normalizer

Put every date in one explicit format.

Data workspace

Ready in this tab

Source

0 B Processed locally
Import settingsAuto-detect enabled
JSON text

Overrides apply on the next analysis. File decoding and every transform run only in this tab.

Paste data or choose a file to begin.

Analysis results

Analysis canvas

Ready when you are.

  1. Add a local file or paste data.
  2. Analyze format, quality, and likely sensitive fields.
  3. Review, clean, and export the in-tab working copy.
01 / Parse

Know the shape of the data.

Detect delimiters, validate structured text, and surface useful error locations.

02 / Review

Spot quality and privacy risks.

Measure completeness, duplicates, mixed values, and likely identifiers before sharing.

03 / Prepare

Shape a working copy locally.

Filter, sort, select, rename, deduplicate by keys, validate schemas, and export without changing the original file.

Focused utilities

Start with the job in front of you.

Every route opens the same private engine with guidance tailored to that format.

Practical guide

Normalize dates without silently guessing

A value like 03/04/2026 can mean March 4 or 3 April. Auto mode accepts unambiguous values and rejects ambiguous numeric dates; an explicit input order lets you state what the source means before converting it.

  • 01Analyze the table and open the Format tab.
  • 02Choose the date column and its input order.
  • 03Preview ISO, US, UK, readable, or ISO date-time output with invalid counts.
  • 04Apply one undoable change and export the local working copy.
How does the formatter handle ambiguous dates?

Auto mode does not guess when both the day and month are 12 or less. Select MDY, DMY, or YMD to describe the source explicitly, then review the before-and-after preview.

Can it convert timestamps to UTC?

Yes. ISO date-time values can preserve their written date and time, convert to UTC, or use the browser timezone before formatting.

Does Parse The Data upload my files?

No. Parsing, profiling, cleanup, and export run inside your browser tab. The application does not send dataset contents to our server or any third party.

What file types are supported?

CSV, TSV, JSON, and JSON Lines (JSONL or NDJSON) are supported as pasted text or local files up to 10 MB. CSV files can also be decoded as UTF-8, UTF-16, or Windows-1252.

Can it detect every privacy risk?

No. The privacy scan uses deterministic patterns and column-name hints. It can find common emails, phone numbers, IP addresses, SSNs, and payment-card patterns, but it is not a substitute for a formal privacy review.

Designed for restraint

The server delivers the tools. Your dataset stays in the browser.

The app files arrive first. Parsing, profiling, and cleanup then happen in a browser worker on your device. The dataset has no upload path.

  • No accounts
  • No cloud storage
  • No third-party scripts

Use the PII scan as an early warning—not as legal advice or a compliance certification.