Persona Builder: a free browser tool for personas
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TL;DR: Persona Builder is a free, single-page browser tool for building UX research and marketing personas. Fill in a form at one of three detail levels, basic, standard or full and watch a formatted persona card update as you type. Export the finished card as a PNG or a PDF. Everything you type stays in your own browser, form data and saved personas alike. Try it at flairmi.com/tools/persona-builder.
Why a persona builder
A persona is a short, structured description of a type of user or customer, built from research, and used to keep a team’s decisions tied to a real audience. The idea is standard practice in UX research and marketing, but the tools for producing one tend to sit at two extremes. A blank slide offers little structure and a different result each time. A heavyweight product asks for a sign-up, a subscription or an account before the first field.
Persona Builder sits between those two. It is a form on one side of the screen and a live preview of the finished card on the other. There is no account, no subscription and no server involved once the page has loaded.
Three levels of detail
Personas need different amounts of information, so the tool offers 3 tiers:
- Basic: name, role and a one-line summary. Enough for a quick workshop exercise or an early sketch.
- Standard: adds age, location, occupation, goals, pain points, typical behaviour and preferred channels. This is the level most research and marketing teams settle on for day-to-day use.
- Full: adds a representative quote, motivations, personality traits, technology comfort, key metrics tracked and a notes field for sources and caveats.
Switching levels keeps what you have already written. Fields from a lower tier stay filled in if you move up to a fuller one, and moving back down hides the extra fields, with their contents kept.
Avatars without a photo library
Every persona card needs a face, but real research personas are usually composites of more than one person. Persona Builder gives you three ways to fill the avatar: upload your own photo, pick one of eight generated sample avatars or fall back to plain initials. The sample avatars are drawn as inline SVG shapes at the point you click them, so the page loads them with zero external requests.
Export and save
A finished card exports as a PNG or a PDF with one click, sized for dropping straight into a slide deck or a research report. Personas can also be saved inside the tool itself for later editing, a saved list appears under the form with each entry’s name and last-updated date, and any entry can be reloaded or deleted. Saved data lives in the browser’s local storage on the device you are using, so it stays on that device and away from any server.
Update, 29 September 2026
Persona Builder now has a fourth level, Journey, which records the persona stage by stage: a goal, a feeling and a deciding factor at each stage of the customer journey, each marked as from data or an assumption. A finished journey persona goes straight to the Customer Journey Mapper, and both tools belong to the Marketing Toolkit Hub, 32 free marketing tools with guided demos.
Try it
Open Persona Builder and click “Load sample” to see a complete example, Lukas Hoffmann, an IT project manager who books hotels for work and leisure, shown at the Journey level. Press “Watch the demo” for a guided tour before building your own from a blank card.