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About this tool
Build a micro, short and long author bio in first or third person, with live word counts against platform limits.
The Author Bio Builder creates micro, short and long author bios for bylines, newsletters, speaker pages, personal websites and social profiles. It supports first-person and third-person wording, tone selection, role/niche/proof fields and live word counts so the result stays close to platform limits.
Open Author Bio Builder on AltFTool — it loads instantly in your browser.
Paste or type the text you're working with.
Choose how it should be transformed or analyzed.
Copy the finished text into your document or post.
Generate micro, short and long variants from the same source details.
Choose professional, warm, bold or academic wording in first or third person.
The generated bio appears with a live word count and copy button.
Yes. Use the short or long length, then paste it into LinkedIn and adjust for your exact headline or about-section style.
No. The tool only works from the proof and credibility details you enter. Leave that field blank if you do not want a proof sentence.
Third person is common for bylines and speaker pages; first person feels more natural for personal websites and social profiles.