Marketing Copy Translator

Localising ad copy is not translating it. A headline that fits a sixty-character slot in English will not fit the same slot in German, and an idiom that lands in one market reads as noise in another. This page adapts copy across up to six markets at once and shows the character budget for each.

Length Is the Constraint That Breaks Localisation

Ad platforms impose character limits, and those limits are the same in every market while the languages are not. The practical consequence is that a headline comfortable in English becomes a truncation problem in German, and the team discovers it after the campaign is built. Making the budget visible before translating is more useful than any amount of fluency.

• Six markets are supported, each carrying its own character limit rather than a single global figure. Spanish, Brazilian Portuguese, German and French are budgeted at sixty characters; Japanese and Simplified Chinese at forty, because both compress well and ad conventions assume shorter lines.
• Each market also carries three localisation notes that are about the market rather than about the language. The German notes warn that compound nouns make German the longest and suggest expecting an increase of around thirty percent, and advise keeping the formal register unless the brand is deliberately casual. The Brazilian Portuguese notes specify Brazilian rather than European spelling and observe that ad copy there is warmer and more conversational.
• Market-specific register guidance is included where it matters: Spanish distinguishes between the informal second person for friendly tones and the formal one for premium or business audiences, and Japanese distinguishes polite forms for premium copy from casual forms for social ads.
• Two selectors describe the source rather than the target. Copy type distinguishes an ad headline, a product description, a social ad and an email subject line, because the character constraint differs sharply between them. Brand tone offers punchy, premium, friendly and urgent, which decides whether the adaptation cuts words for impact or pays for length to sound considered.
• All selected markets are processed in one run and rendered as separate cards, so the six versions can be compared side by side without repeating the input six times.
• A note appended to the result states in plain terms that a local adaptation has been applied and that a true localisation requires a connected provider, which is an accurate description of what the phrase pass does.

A Workflow for Localising One Headline

1. Paste the source copy and select every market you are planning to run, not just the first. Seeing all six cards together is what reveals that the German version is the one that will not fit, which is the finding you need before creative is approved.
2. Set the copy type to match the actual placement. An ad headline and an email subject line have different constraints, and the guidance differs accordingly.
3. Choose the brand tone before generating. Punchy pushes toward shorter output and premium toward longer, more considered phrasing, and picking after the fact means regenerating rather than adjusting.
4. Read the character limit beside each card against the length of the result. Treat the limit as the real deliverable and the translation as the attempt at it.
5. Read the market notes even if you have localised for that market before. They are short and specific — the Spanish register distinction and the German compound-word warning are the two that most often explain why a version reads oddly to a native speaker.
6. Where a version exceeds its budget, cut in the target language rather than shortening the English and re-translating. Cutting the source and re-running usually changes all six versions, which is more revision than the problem needs.

Phrase Adaptation and Full Localisation

Alternative	Notes
Phrase adaptation, no key needed	Substitutes recognised marketing phrases into the target language and attaches the market notes and the character budget. Runs locally, instantly, and the copy never leaves the browser. What it does not do is restructure a sentence that will not fit, or find a different angle that works in the market — both of which are the actual work of localisation.
Model-based localisation, connected provider	Rewrites the copy in the target language with the tone and market context applied, which means idiom substitution and restructuring rather than replacement. The copy is transmitted to the provider, which for pre-launch campaign material is worth deciding on deliberately rather than by default.
A localisation agency or an in-market copywriter	Still the right answer for a primary campaign in a market you do not operate in, because the value is cultural judgement rather than language. The character budget is the one part of that work a tool can genuinely help with.
Machine translation with a spell-check	The common shortcut, and the one that produces the failure this tool is designed around — a faithful translation that overflows the placement and reads as translated. Checking length per market before you start is what avoids building the campaign on the wrong copy.

One Headline Across Four Markets

Take a sixty-character English headline for a consumer product and localise it into Spanish, German, French and Japanese in one run.

• The Spanish card notes that copy runs around fifteen to twenty-five percent longer than English, which on a sixty-character source is a direct warning that the limit will be exceeded and the headline needs trimming rather than translating.
• The German card is the strictest of the four in practice: the notes warn that compound nouns make German the longest, and suggest expecting an increase of around thirty percent. A headline at the English limit is the one that will be truncated in the ad platform.
• The French card notes that French usually needs more words for the same idea and that formal register is expected for premium copy, so the brand tone setting interacts with the market rather than operating independently of it.
• The Japanese card carries a forty-character budget rather than sixty and notes that Japanese compresses well, which inverts the expectation: the version with the smallest numeric budget is often the one with room to spare, because the language carries the same idea in fewer characters.
• The useful output of the exercise is not four headlines. It is the knowledge that the German placement is the constraint that decides how much meaning fits in the headline at all — a decision easiest to make before the creative is designed around a longer English line.

Where This Fits in a Campaign

• Planning a multi-market campaign, to establish per-market character budgets before creative is commissioned rather than after a truncation shows up in a live ad.
• Localising product descriptions where the register matters more than the length, and the market notes about formality are the substantive guidance.
• Adapting email subject lines for several markets at once, which is the case where a single input produces genuinely useful output across markets because subject lines are short and conventional.
• Not for taglines and brand slogans. Those depend on sound, rhythm and cultural reference, and a substitution pass will produce something longer and flatter in every language.
• Not for legal or regulated claims. Market-specific advertising rules vary widely, and nothing in a phrase table knows what may be claimed about a product in a given jurisdiction.
• Not for copy where a single word carries the campaign. If the whole idea rests on one idiom, adaptation preserves the idiom rather than finding the local equivalent, which is the opposite of what is wanted.

Questions About Market Adaptation

Why are some markets given a shorter character budget?

Because the budget reflects how the language is used in advertising rather than how it is written. Japanese and Simplified Chinese carry the same information in fewer characters, so their placement conventions assume shorter lines and a forty-character limit; Western European languages expand against English and are budgeted at sixty. The numeric budget is not a measure of difficulty — it is a measure of how much room the placement normally gives.

Is the local pass a real translation?

No, and the tool says so on each result. It substitutes recognised marketing phrases and attaches market notes and a character budget. Sentences that need restructuring to fit are not restructured, and idiom that has no direct equivalent is substituted rather than replaced with a market-appropriate alternative. The honest description is an adaptation pass that is useful for planning length and register, and a provider or a copywriter is what turns it into a finished localisation.

Do the market notes apply to any product category?

They are general observations about advertising convention in each market — relative length, register expectations, spelling variant and tone — rather than category-specific advice. They are accurate as far as they go and deliberately conservative, which means anything that depends on your sector, your audience or local advertising rules still needs checking against a source that knows those things.

Does my unreleased campaign copy leave my machine?

Not on the local pass. The phrase tables and the market notes are compiled into the page and the substitution happens there, so pre-launch copy can be planned without transmitting it — which matters more for marketing material than for most text, since an unannounced product name in a translation service is a genuine commercial risk. Connecting a provider is the step that sends it.

Last verified: October 3, 2026

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Maintained by Huang Bin · Last updated October 3, 2026