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Find and Replace

Upload any plain-text file (TXT, CSV, LOG, MD, source code, etc.) and perform fast, client‑side find‑and‑replace operations. Enter the exact text to search for, specify what to replace it with, and choose whether matching should be case‑sensitive. Your file never leaves your device — the whole process stays inside your browser.

🔒 Processing happens in your browser — files are never uploadedFree · No sign-up required

How to Use

  1. 1Upload a text file by dragging & dropping or clicking the file input.
  2. 2Type the text you want to find in the “Find” field and the replacement text in the “Replace” field.
  3. 3Adjust the “Case sensitive” checkbox if needed, then click **Replace All** to download the updated file.
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Why use ShowPro's Find and Replace?

🔒
100% Private
Files never leave your browser. Zero server uploads.
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Instant Results
Processing happens locally — no waiting for uploads.
🆓
Completely Free
No account needed. Use 5 times per day, always free.

Frequently Asked Questions

Is there a file size limit?

Since the whole document is processed in memory, the limit depends on your device. Files up to about 50 MB typically work without issues.

Does it support regular expressions?

No, this tool only handles literal string replacements. For regex-based find and replace, consider a dedicated code editor.

Will my file be uploaded somewhere?

Absolutely not. Everything runs client‑side; your file stays on your computer at all times.