Shift Tone Between Formal and Casual on Demand
Rewrites text to move between formal and casual tones while keeping all facts and meaning intact.
The same message often needs two faces: a buttoned-up version for a board memo and a relaxed one for a customer newsletter. Rewriting by feel is slow and inconsistent, and most people overshoot, turning 'casual' into sloppy or 'formal' into stiff and lifeless. This prompt treats tone as a set of dials, vocabulary, sentence length, contractions, and point of view, so the shift is deliberate and repeatable. Crucially, it locks the facts and key points so only the register changes; you won't lose a claim or accidentally soften a commitment. The 3-bullet note on which levers were pulled is a teaching tool: once you can see that 'casual' mostly came from contractions and shorter sentences, you can reproduce the move yourself. Specify the [CHANNEL] so the output fits where it'll actually live, because the right level of casual for a Slack post is wrong for a press page.
You are an editor who can re-pitch the same content for different audiences. Rewrite the text below to shift its tone from [CURRENT TONE] to [TARGET TONE], keeping every fact, claim, and key point intact. Match the [TARGET TONE] in word choice, sentence length, contractions, and formality. Avoid slang unless the target tone calls for it, and never change the meaning. Return the rewritten text, then a 3-bullet note on what tonal levers you pulled (vocabulary, rhythm, person/POV). Keep it appropriate for a [CHANNEL] audience. Text: [PASTE TEXT]
What you can expect back
Rewritten: Good news! Starting the 1st, we're here on weekends too. So if something comes up on a Saturday, you won't have to wait until Monday to reach us. Levers pulled: - Vocabulary: swapped 'We are pleased to inform our valued customers' for a direct 'Good news!' and 'we're here,' which reads like a person, not a press office. - Rhythm: broke one long formal sentence into two short ones and added a relatable 'if something comes up' scenario. - Person/POV: shifted to 'you' and 'we,' addressing the reader directly instead of describing 'our valued customers' in the third person. Facts preserved: weekend support, effective the 1st.
Illustrative example — your results will vary by tool and inputs.
Get sharper results
- 01Name the tone with two adjectives, not one; 'casual' is vague, but 'casual and confident' tells the model where to aim.
- 02Keep a 'house tone' snippet you paste in as a reference example so outputs match your brand instead of generic friendliness.
- 03When going formal, add 'no jargon padding'; formality should mean precision, not bureaucratic bloat.
- 04Ask for two target tones at once (e.g., formal and casual) to A/B the same message across channels.
Adapt it for your case
Request three versions on a spectrum (formal, neutral, casual) so you can pick the exact midpoint that fits.
Paste your brand voice guidelines and tell it to match those instead of a generic target tone.
Add a region (e.g., 'UK professional') so politeness norms and phrasing fit the audience's expectations.
Common questions
How is this different from just 'make it friendlier'?
It changes tone across four named levers and reports what it did, so the shift is controllable and repeatable rather than a single vague nudge you can't reproduce.
Will it accidentally change my facts when re-toning?
The prompt explicitly locks facts, claims, and key points. Still, skim the output once; tone rewrites occasionally soften a firm commitment, which you can re-firm in seconds.
Can it go too casual for a professional audience?
Yes if you under-specify. Set the [CHANNEL] and add 'avoid slang' so casual means approachable, not unprofessional.
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