// every page, one list

Sitemap

Every tool on Delint, grouped by what it works on. Everything here runs entirely in your browser — nothing is uploaded.

Text & data cleanup

  • Text cleaner

    Strip hidden formatting, tracking spans, and font tags from text pasted out of Word, Google Docs, or a webpage — outputs clean plain text or Markdown.

  • CSV cleaner

    Auto-detects the delimiter, repairs ragged rows, trims stray whitespace, and exports a clean CSV.

  • Encoding fixer

    Fixes mojibake and double-encoded UTF-8 (’, é), and normalizes Unicode.

  • JSON fixer

    Repairs common JSON syntax errors — trailing commas, single quotes, unquoted keys, comments — and pretty-prints the result.

  • Mail checker

    Scans pasted email text or HTML for common phishing red flags — urgency language, mismatched links, lookalike domains.

  • MultiValue unpacker

    Splits raw UniData/UniVerse/D3/jBase exports (item, field, value, and subvalue marks) into a clean CSV or nested JSON.

  • Delimiter splitter

    Reparses a delimited text file with any separator — comma, tab, pipe, semicolon, or custom — and exports clean columns.

  • Contact detail splitter

    Splits messy one-line contact entries — name, relationship, phone, and address run together — into clean Name, Relationship, Phone, Address, and Postcode columns.

  • Encoding & line-ending fixer

    Detects mixed character encodings and inconsistent line endings, then normalizes the file to clean UTF-8.

  • JSON ↔ CSV converter

    Converts a JSON array of objects to CSV/XLSX, or a CSV/XLSX file into JSON, in either direction.

  • Merge & fill-down cleaner

    Unmerges merged Excel cells and fills blanks downward from the last real value above.

Spreadsheet tools

  • Sheet cleaner

    Removes hidden characters, unusual spaces, and extra whitespace from text cells in an Excel workbook.

  • Column splitter

    Splits one xlsx column into several, by delimiter or fixed width.

  • Split into tabs

    Groups rows by a column's value and fans them out into separate tabs in one workbook.

  • Row chunker

    Splits a file into evenly sized chunks by rows-per-file or by a fixed number of files, header repeated in each.

  • Typed Excel exporter

    Sets a type per column before exporting to XLSX, so Excel doesn't silently mangle postcodes, phone numbers, or leading-zero IDs.

  • File combiner

    Merges several CSV or XLSX files with matching headers into one, for stitching chunked exports back together.

  • Date/time normalizer

    Detects mixed date formats — Excel serials, epoch, DD/MM vs MM/DD — and converts a column to ISO 8601.

Data matching & validation

  • Duplicate finder

    Flags likely duplicate rows using cascading match logic across email, name, and phone.

  • Header fuzzy matcher

    Maps messy column headers onto a canonical set using fuzzy string matching.

  • Reference list checker

    Validates every value in a column against a canonical list and flags anything that doesn't match closely.

  • Phone/postcode formatter

    Normalises UK phone numbers or postcodes to a consistent format and flags entries that don't look valid.

  • Sort code / account checker

    Checks UK sort codes and account numbers for correct format and a heuristic modulus-11 checksum.

  • Luhn checker

    Validates numbers against the Luhn checksum — one at a time, as a check-digit generator, or across a whole file column.

  • File diff

    Compares two versions of the same export and reports what's added, removed, or changed.

Location & communications

  • Postcode proximity grouper

    Geocodes UK postcodes and splits addresses into a chosen number of spreadsheet tabs, grouping the closest together.

  • Mail merge previewer

    Fill a template with {{field}} placeholders from a CSV of recipients, then preview or export per row.

Other