Form.io Paste Cleaner — PDF “Weird Character” Detector

Paste text (even from PDFs). This will detect risky Unicode/control characters, show where they appear, and let you apply safe replacements/removals while preserving line breaks/spacing.

🔒Local-only

Pasted input Tip: paste directly from the PDF

Chars: 0 • Lines: 0 • Issues: 0 • Total hits: 0

Highlighted preview (problem characters marked) severe moderate

(nothing yet)

Severe: hidden/bidi/control/NULL/line separators

Moderate: smart quotes, NBSP, dashes, bullets, ellipsis, ZW chars

Detected issues Fix per-character

Paste something to see detections.

Progress

Notes:

Form builders often choke on hidden controls like U+0000, zero-width characters, and bidi overrides.
This tool flags those plus common “PDF paste” characters (NBSP, smart quotes, bullets, dashes).
Copying “cleaned text” gives you plain text suitable for Form.io properties/labels/JSON.