Sentence case converter

Start sentences with a capital letter while normalizing the rest of the text.

Input text

Text is processed only on this device. Standard limit: 5 MiB; JSON and Base64: 2 MiB.

0 characters · 0 words · 0 lines · 0 sentences

How to use

Paste the text you want to sentence case converter, choose any available options, then select Transform. The result remains in this browser tab.

Example

The converter recognizes periods, exclamation marks, and question marks as sentence boundaries. Input: “hELLO. wORLD!”. Output: “Hello. World!”.

Uses

Use sentence case converter when the output needs one specific, repeatable text transformation rather than a manual edit.

Limitations

This tool follows the documented engine rules. The converter recognizes periods, exclamation marks, and question marks as sentence boundaries. Review the result when language context, terminology, or formatting conventions matter.

Local privacy

Your input and result are processed locally on this device. Convertca does not put tool text in URLs, analytics, or saved histories.

Task-specific guidance

Use it to normalize informal copy before a final editorial pass.

FAQ

Does it send my text anywhere? No. Ordinary transformations run locally; use Copy or Download only when you choose to take the result elsewhere.

Verified examples

The converter recognizes periods, exclamation marks, and question marks as sentence boundaries.

Input: hELLO. wORLD!
Output: Hello. World!