👁️ Ferramenta de caracteres invisíveis

Os caracteres invisíveis, como os espaços de largura zero, os espaços inquebráveis ou uma marca de ordem de bytes (BOM), infiltram-se muitas vezes no texto copiado e provocam problemas difíceis de detetar na apresentação, na pesquisa e no processamento de dados. Esta ferramenta analisa o seu texto, mostra cada caractere oculto com a posição, o ponto de código Unicode e o nome, e pode removê-los todos com um clique. O processamento é feito inteiramente no navegador.

How to Use This Tool

Cole o texto no campo e clique em «Detetar caracteres». Verá uma tabela de todos os caracteres invisíveis encontrados. Com «Remover e limpar» obtém uma versão limpa pronta a copiar.

What This Tool Checks

A ferramenta deteta os caracteres Unicode invisíveis mais comuns: espaço de largura zero, ligadores e não ligadores de largura zero, BOM, espaços inquebráveis e outros espaços Unicode, além de caracteres de controlo.

Understanding Your Results

A zero count is what you want for URL slugs, schema property values, JSON keys, keyword targets, product SKUs, and anywhere else a machine needs to match the string exactly. Small counts (a single BOM at the start of the file, a few non-breaking spaces inside a translated paragraph) are usually harmless in flowing prose but should still be removed from anything a computer will parse. High counts distributed evenly through the text — especially zero-width spaces between every other letter — are a strong indicator that the text has been deliberately obfuscated, either to bypass a plagiarism check, hide an origin, or evade a keyword filter. The Position column tells you exactly where each character sits so you can trace back to its source (a specific paragraph in your CMS, a particular row in your CSV, a broken import).

How to Fix Common Problems

For a one-off cleanup, use the Remove & Clean button and paste the cleaned text back where you found it. If invisibles keep coming back, fix them at the source: check whether your rich-text editor is set to "keep source formatting" on paste (turn it off), whether a translation plugin is inserting formatting marks it doesn't need, whether the file is being saved with a UTF-8 BOM by an editor that adds one by default (most modern editors let you disable this), and whether a CSV import is preserving non-breaking spaces from spreadsheet cells. For code, most editors can show invisible characters via a "render whitespace" or "show invisible characters" setting, and most linters can flag them automatically — turn those on.

SEO Best Practices

Verifique o texto copiado de PDF, Word ou páginas web antes de o publicar ou importar. Assim evita pesquisas incorretas, problemas de maquetação e dados inválidos.

Example

A product page title that reads "Wireless Headphones" but was pasted from a design brief may contain a zero-width space between "Wireless" and "Headphones" — the tool will report one invisible character at position 8, code point U+200B, name ZERO WIDTH SPACE, count 1. Removing it makes the string identical to what a searcher would type. As a second example, a CSV export from an accounting tool often has a byte-order mark (U+FEFF) at position 0 of the very first cell of the first row, which confuses parsers that don't strip BOMs — cleaning the file once before import fixes the problem for good.

Common Mistakes to Avoid

Um erro comum é considerar um texto limpo só porque parece normal: os caracteres invisíveis, por definição, não se veem. Na dúvida, verifique sempre.