= Write My Formula

Text formula generator

Clean and extract text without hand-building string formulas.

Describe the text cleanup job, paste sample values, and get a formula for splitting names, extracting domains, joining fields, removing extra spaces, or replacing text.

Request

Formula request

2 guest tries left
Mode
Spreadsheet
Upgrade $9

Purpose-built inputs

A focused workflow for everyday spreadsheet work.

Structured formula builder

Task, table context, target range, and function hint keep the request specific.

Write / Explain / Fix modes

Generate a new formula, translate a pasted one, or diagnose common syntax issues.

Excel and Sheets toggle

Compatibility notes call out modern functions and platform-specific behavior.

Formula-bar output

The result is formatted for scanning and placed next to a copy button.

Common formulas

Pick the formula you came for.

Percentage formulas

Build percent of total, percent change, discount, markup, tax, tip, and completion-rate formulas.

Date formulas

Create due dates, workday counts, month-end dates, date differences, and overdue checks.

FILTER formulas

Return matching rows for status, region, date, text, and threshold conditions.

Text formulas

Split, extract, join, trim, clean, and replace text from messy imported cells.

Data validation formulas

Block bad IDs, duplicate values, missing fields, and invalid entries with custom TRUE/FALSE rules.

XLOOKUP formulas

Return matching values with separate lookup and return ranges.

INDEX MATCH formulas

Build flexible lookup formulas for left lookups, two-way lookups, and older Excel files.

SUMIFS formulas

Total rows that match status, date, category, customer, or region rules.

Use case

Text formula generator for spreadsheet work.

Build formulas that transform messy imported text into useful fields without manual copy, split, or find-and-replace work.

What this page gives you

  • A draft text formula matched to the sample values you paste.
  • A plain-English read of which delimiter, pattern, or cells the formula uses.
  • Checks for blanks, missing delimiters, spill behavior, and Excel versus Sheets function support.

When to use it

Use this page when imported spreadsheet text needs to be split, cleaned, joined, extracted, or normalized. It is especially useful for email domains, product codes, first and last names, address fragments, labels, and copied CRM exports.

Do not rely on one perfect-looking sample. Text formulas can break when later rows contain missing delimiters, double spaces, punctuation differences, or values that look like numbers but are stored as text.

Worked example

For email addresses in A2:A500, a Google Sheets formula can extract the domain after the @ symbol.

=REGEXEXTRACT(A2,"@(.+)$")

The formula reads the email address in A2, captures the text after @, and returns the domain so the formula can be filled down.

Check before you paste

  • Test samples with missing delimiters, extra spaces, and blank cells.
  • Check whether the formula spills into neighboring cells before filling down.
  • Confirm modern Excel text functions such as TEXTSPLIT or TEXTAFTER are available in your version.

Upgrade when the work piles up

Keep going when the sheet gets complicated.

Try twice as a guest. Free accounts get 3 runs per week plus a monthly product email. Upgrade when formula work becomes a recurring part of the week.

Founding access

$9

500 formula runs per month in this browser, early access pricing, and account access as it ships. Stripe redirects you back after payment.

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