Persona switcher
The same instructions delivered in a different voice produce noticeably different output. A “ruthless editor” trims and challenges; a “patient mentor” explains and reassures; a “startup founder” prioritises speed and leverage. This tool takes your existing system prompt and reframes its role and voice to match a chosen persona archetype — without touching the underlying task you defined.
How it works
You paste your base system prompt and pick a persona. The tool prepends a framing block that establishes the persona’s role, characteristic voice, and a few behavioural cues (how it handles disagreement, level of detail, default tone), then appends your original instructions unchanged below it. The result is a complete system prompt where the assistant carries the new personality while still doing exactly the job you specified.
Everything happens in your browser from built-in persona templates — there is no model call, no upload, and nothing is stored.
Tips and notes
Match the persona to the task, not your mood: choose the ruthless editor for final-draft tightening, the Socratic teacher for learning, the analyst for weighing options. Keep your task instructions concrete in the base prompt — the persona steers how the model responds, but it cannot supply detail you never gave it. If a persona feels too strong (the editor too harsh, the founder too breezy), add one balancing line to your base prompt, such as “stay constructive” or “explain your reasoning.” And always read the assembled prompt before using it, so the voice and your instructions clearly reinforce rather than fight each other.