Free AI tool, no signup
Pick a platform and a tone, say what you do, and get 3 bios sized to that platform's character limit, each with a live count.
Tell us about yourself and your platform
Each bio is written to your platform's character limit and culture.
Three unique variations so you can pick the one that feels right.
3 unique bios tailored for LinkedIn
Fill out the form and get 3 unique bio options for your LinkedIn profile.
Limits below were checked in October 2026. Need a matching handle? Try the Reddit username generator.
Checked October 2026, with sources
TikTok gives you 80 characters, LinkedIn gives you 220. A bio written for one breaks on the other.
So the first line does the work. Put the role and the audience before anything clever.
Every platform cuts you off at a different point, and a bio written for LinkedIn will not survive TikTok's 80 characters. These are the limits the generator writes against, checked in October 2026 against the sources linked in each row.
| Platform | Bio field | Character limit | What to prioritize | Source |
|---|---|---|---|---|
| TikTok | Bio | 80 | One sharp line, nothing else fits | Replug, citing TikTok Help Center |
| Bio | 150 | Niche, vibe, and the link-in-bio payoff | Sendible | |
| Twitter/X | Bio | 160 | What you do, one personality marker | X Help Center |
| GitHub | Bio | 160 | Stack, current project, contributions welcome or not | Rybbit |
| Profile description | 200 | Sound like a member, not a marketer | Rybbit | |
| Headline | 220 | Role, expertise keywords, one proof point | AuthoredUp | |
| YouTube | Channel description | 1,000 (this tool writes a tight 200) | First 100 to 150 characters show before the fold | Influencer Marketing Hub |
LinkedIn's About section is a separate field with 2,600 characters, about 300 of which show before “see more”. Instagram and TikTok names cap at 30 characters.
What to put in a bio
Who you are, who you help, one proof point, one next step. Cut from the bottom when space runs out.
1Product designer
2helping SaaS teams cut onboarding drop-off.
3Ex-agency lead, 40+ launches.
4Free onboarding teardown below.
Illustrative profile. 122 characters, fits every platform except TikTok.
Your role in plain words, the term people search for.
The audience and the outcome they get from you.
A credibility marker: past work, a number you can back up.
Tell readers what the link below is for.
Visitors skim the bio before they follow, connect or leave. It is the most read copy on your profile.
Specific, keyword-rich bios surface in platform search more often than generic ones.
The same voice on LinkedIn, X and Reddit builds recognition. People who saw you once trust you faster.
Real output, run October 15, 2026
Same input every time: "Indie founder building an invoicing app for freelancers". Only the platform and tone changed.
Indie founder building smarter invoicing tools for freelancers. Focused on simplifying billing, improving cash flow, and helping independent professionals spend more time on meaningful work.
Lisbon, Portugal · Contact infoConnectIndie founder making invoices less painful for freelancers. I write code, chase bugs, and occasionally chase unpaid bills.
Indie founder building an invoicing app for freelancers. Sharing the messy process, product lessons, and occasional wins. Feedback welcome.
LinkedIn bios get indexed by recruiters and buyers. Include your title, core expertise, and a hint of personality. Keywords help you get found in LinkedIn search results. Only the first 60 to 70 characters show in search, so lead with the role.
You have 160 characters. Lead with what you do, add a personality marker, and include a relevant link. Every word must earn its spot in your bio.
Reddit users check profiles before engaging. A bio that shows you are a genuine community member (not a marketer) builds trust before you ever post content.
Say who the account is for and what they get, then point to the link. Your name field (30 characters) is searchable, so a keyword there helps too.
80 characters is one sentence. Say what people get from following. The clickable link only shows at 1,000+ followers or on a business account.
Name the languages you work in, what you are building now, and whether you welcome contributions. Skip the adjectives.
You get 1,000 characters, but previews show roughly the first 100 to 150. This tool writes a tight 200 you can expand.
Bio examples
The fix is almost always the same: swap adjectives for a role, an audience and a fact.
Entrepreneur. Dreamer. Coffee lover. Living my best life.
No role, no audience, no reason to follow.
Founder of a freelancer invoicing app. Writing about getting paid on time. Mostly powered by coffee.
Role and topic first, personality last.
Passionate, results-driven marketing guru with a proven track record of synergy.
Every word is a claim, none is a fact.
B2B SaaS marketer. I run paid search for developer tools and share what the numbers say.
Specific niche, specific job, a promise you can keep.
Check out my app!! Best invoicing tool ever, link below, use code REDDIT20.
Reads as a spam account to Redditors and mods.
Solo dev building an invoicing app. Mostly hanging out in freelance subs, happy to answer billing questions.
Member first, product second, an offer to help.
Write it yourself
Swap the brackets, cut until it fits the limit, done.
[Role] helping [audience] [outcome]. Previously [credibility marker]. Building [current project].
Product designer helping SaaS teams cut onboarding drop-off. Previously agency lead. Building a teardown newsletter.
116 charactersBuilding [product] to fix [problem]. Sharing what I learn about [topic]. [One human detail].
Building an invoicing app to fix late payments for freelancers. Sharing what I learn about pricing. Dog person.
111 characters[Niche] for [audience]. New [content type] every [cadence]. [CTA for the link below].
Budget travel for students. New city guide every Friday. Free packing list below.
81 charactersWant variations in different tones? Tools like MediaFast's generator above draft three at a time.
Written by our team as starting points, not tool output. Swap in your own niche, city and link payoff.
Strength coach for busy moms. 20-minute home workouts. Free 4-week plan below.
Sourdough nerd in Austin. Weekend bake drops, DM to preorder.
Wedding photographer, Lisbon and beyond. Booking 2027 dates, inquiries via the link.
Watercolor botanicals. Prints, stickers and the occasional fail. Shop below.
Frontend dev sharing tiny CSS tricks. One reel a day, zero fluff.
Plant-based dinners under 30 minutes. Every recipe is in the link.
Handmade soy candles, small batch. Ships across the US. Shop the fall scents below.
Professional overthinker, amateur chef. Posting what I cook, not what I burn.
Plant parent of 43. Survival rate: improving. Care tips every Sunday.
Reading 100 books this year. Honest reviews, no spoilers above the fold.
Same founder, six voices
Real outputs for the same founder on X. Pick the voice your audience already uses.
Indie founder building simple invoicing software for freelancers. Making it easier to bill clients, get paid, and focus on the work.
Fits best: LinkedIn, GitHub
Building a simple invoicing app for freelancers. Founder, product nerd, and occasional spreadsheet escape artist.
Fits best: Reddit, X
Indie founder making invoices less painful for freelancers. I write code, chase bugs, and occasionally chase unpaid bills.
Fits best: X, Threads
Building a simpler way for freelancers to get paid. Indie founder creating invoicing tools that turn great work into steady momentum.
Fits best: Instagram, YouTube
Building an invoicing app that helps freelancers get paid, without the busywork.
Fits best: TikTok, GitHub
Building the invoicing app freelancers deserve. Indie founder, product obsessive, and done with payment chaos.
Fits best: X, Instagram
Founders who got found
Real posts from founders using MediaFast to plan where and what to post on Reddit.
Reddit bio ideas
On Reddit, nobody finds your bio first. They find a comment, then check who wrote it.
Step 01A useful answer in a subreddit is what makes people curious about you.
Step 02Redditors check profiles before trusting advice. The bio is the first thing they read.
Step 03A member-first bio with one honest line about your project gets the link opened.
Pick 5 to 10 subreddits where your audience asks questions, answer well for a few weeks, then let the profile do the selling. MediaFast finds those subreddits and drafts rule-aware posts so the profile visits keep coming. Reddit allows 200 characters here: use about 140 for who you are and what you share, and keep the rest for one plain mention of your project.
What to avoid
Most weak bios fail on one of these. All six are quick fixes.
A 220-character LinkedIn headline gets cut on TikTok at 80.
"Passionate dreamer" is not something anyone searches for.
"World-class" or "#1" without proof reads as filler.
Redditors check profiles. A pitch there looks like a spam account.
Say what the link gives them: a guide, a demo, a free list.
An old job title or dead project tells visitors you left.
After the bio
A bio gets the click. These free tools cover the name, the first line and the first post.
The Reddit Profile Analyzer shows your karma, top subreddits and activity patterns, the things a visitor sees right next to your bio.
Pick a Reddit username A name that fits your bio and does not read like a brand account.
Write the first line Hooks for posts and captions, built on the same idea as a good bio.
Post on LinkedIn Turn the headline you just wrote into a post people finish reading.
Draft a Reddit post A post in the format each subreddit rewards, not a sales pitch.The live demo reads your website and builds a sample Reddit roadmap: subreddits hand-picked from 4,200+, rule-aware post drafts and when to post.
Free live demo with your own website, no signup.
Everything you need to know about writing bios that convert.
The bio generator writes for 7 platforms: LinkedIn (220 characters), Twitter/X (160 characters), Instagram (150 characters), Reddit (200 characters), GitHub (160 characters), TikTok (80 characters), and YouTube (trimmed to 200 characters of the 1,000 allowed). Each bio is sized for the platform's character limit and audience expectations, and every option shows a live character count.
As of October 2026: TikTok bio 80 characters, Instagram bio 150, X bio 160, GitHub bio 160, Reddit profile description 200, LinkedIn headline 220 (About section 2,600) and YouTube channel description 1,000. Spaces and punctuation count toward every limit.
Four parts cover almost every platform: who you are (your role in plain words), who you help and the outcome, one proof point you can back up, and a next step that tells readers what the link is for. On short platforms like TikTok, keep the first two and drop the rest.
A strong LinkedIn bio should state your role, highlight your key expertise, and hint at the value you provide. Avoid buzzwords like 'synergy' or 'guru'. Be specific about your achievements and include relevant keywords for searchability. Our AI generates multiple options so you can pick the best fit.
Yes. Choose from six tones: professional, casual, witty, inspirational, minimalist, and bold. Each tone produces a different style of bio, so you can match it to your personal brand and the platform you are writing for.
Yes, every bio is generated fresh by AI based on your specific role, platform, tone, and keywords. You will get 3 unique options per generation, and running it again produces entirely new bios.
Each platform has different character limits, audiences, and expectations. A LinkedIn bio should be professional and keyword-rich. A Twitter bio should be punchy and personality-driven. An Instagram bio should be creative and visual. A Reddit bio should sound like a community member. Our tool adapts to each platform automatically.
