ToolGrid AIUTF-8 Byte Counter
Compare text length with its actual UTF-8 encoded byte size.
Runs entirely in your browser — your selected files are not uploaded by this tool. Device-provided speech voices may use online services.
About this free utf-8 byte counter tool
Compare text length with its actual UTF-8 encoded byte size. Text utilities make repeatable edits to drafts and lists without asking a model to rewrite the meaning. Keep a source copy when sorting, extracting or transforming data. The right operation depends on whether spaces, line breaks, case and punctuation are meaningful in your destination; review a short representative sample first.
A practical example
A concrete example uses text: Aé. The result is Unicode code points: 2 UTF-8 bytes: 3.
Before you rely on the result
Processes pasted input on your device, not a live website. Keep the original and review the output. Up to 200,000 characters. Simple Markdown and parentheses tasks are not full document parsers; tabs use four fixed spaces.
Frequently asked questions
Is the utf-8 byte counter free to use?
Yes. The UTF-8 Byte Counter is free, needs no account and has no usage limit beyond what your device can handle.
Are my files or numbers uploaded anywhere?
No. The UTF-8 Byte Counter runs in your browser, so the values and files you enter stay on your device. Close the tab and nothing is kept.
What does the utf-8 byte counter do?
Compare text length with its actual UTF-8 encoded byte size. Text utilities make repeatable edits to drafts and lists without asking a model to rewrite the meaning. Keep a source copy when sorting, extracting or transforming data. The right operation depends on whether spaces, line breaks, case and punctuation are meaningful in your destination; review a short representative sample first.
When should I double-check the result?
Processes pasted input on your device, not a live website. Keep the original and review the output. Up to 200,000 characters. Simple Markdown and parentheses tasks are not full document parsers; tabs use four fixed spaces.
Can I share my result?
Yes. Use Copy result or Download, and on calculator-style tools use Copy share link to send someone a link that opens with the same inputs filled in.