Why bulk case conversion matters for email data
Messy capitalisation is one of the quiet ways personalised email goes wrong. Import a list where names are stored as "JANE", "jane" and "Jane" and your "Hi {{first_name}}" merge tag will greet people inconsistently — or shout at them. Email addresses are another: analytics and dedupe tools treat Jane@… and jane@… as different people, splitting your data. Standardising case before you import fixes both.
The four cases
- lowercase — everything down. Ideal for email addresses, tags and identifiers.
- UPPERCASE — everything up. Useful for codes, country or currency fields.
- Title Case — Capitalises Each Word. Good for names and place fields.
- Sentence case — Capitalises the first letter of each line. Good for short labels and headings.
How to use it
Paste your column into the input, one value per line, and pick a transform. Every line converts instantly. Hit Copy and paste it straight back into your spreadsheet or email platform. Everything runs in your browser, so it's safe for names, addresses and other personal data.
Frequently asked questions
How do I convert a whole column to lowercase?
Paste the column, one value per line, and choose Lowercase. Every line converts at once, ready to copy back.
What case options are supported?
Lowercase, UPPERCASE, Title Case and Sentence case — each processing every line independently.
Is my data safe?
Yes — it runs entirely in your browser and is never uploaded or stored.
Cleaning a list too? Try the list cleaner and the name splitter.