buncha.tools
buncha/image/bulk-file-renamer

Bulk File Renamer

Bulk File Renamer

Rename hundreds of files at once. Find & replace, add prefixes, sequential numbering, case changes. Files never leave your browser.

📁
Drop files here or click to select
Files are processed in your browser. Nothing uploaded.

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About Bulk File Renamer

Rename many files at once — prefix, suffix, regex, numbering, case.

Everything happens on your device. Close the tab and it's gone.
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Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
386
Free tools
Across 14 categories
7
Visual editors
PDF · image · video · audio
34
Curated kits
By profession + lifestyle
27
AI tools
Powered by Claude API
Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.