🛠️ Bulk File Extension Changer - Rename or Convert File Formats in Seconds
Need to rename hundreds of file types in one go? Say goodbye to manual renaming! 👋 Our Bulk File Extension Changer helps you change file extensions for images, documents, videos, and more in just a few clicks. Save time and streamline your workflow! ⚙️⚡
📂 What is a File Extension?
A file extension (like .jpg, .pdf, .mp4) tells your computer what kind of file it is and what program can open it. Our tool helps you update or correct extensions for large sets of files at once! 🗂️🔄
🔥 Key Features
- 📁 Bulk file upload & batch processing
- 🔃 Change extensions without affecting file data
- 🧠 Smart detection to avoid duplicate extensions
- 🧾 Rename files with custom naming patterns
- 📦 Supports images, docs, videos, audio & more
- 💡 Preview changes before applying
- 🔐 Works offline & respects your privacy
📦 Supported File Formats
- 🖼️ Image: .jpg ⇄ .png ⇄ .webp ⇄ .gif
- 📄 Documents: .txt ⇄ .docx ⇄ .pdf
- 🎵 Audio: .mp3 ⇄ .wav ⇄ .aac
- 🎞️ Video: .mp4 ⇄ .avi ⇄ .mkv ⇄ .mov
🚀 How It Works
- 📥 Upload or drag & drop your files
- 🖊️ Select the new file extension
- 👀 Preview updated file names
- ✅ Click rename & download updated files
🎯 Use Cases
- 🖨️ Preparing files for printing (e.g., .docx → .pdf)
- 🎬 Making files compatible with editing tools
- 🗂️ Organizing large media libraries
- 🛠️ Fixing incorrect or missing extensions
🔐 Privacy & Safety
We never store your files. All actions are done locally in your browser or with encrypted temporary servers. Your data stays private. 🔒✅
💬 FAQs - Bulk File Extension Changer
- 1. Will changing the extension convert the file format?
Only the extension changes. Use a converter tool to actually change formats.
- 2. Is there a file size or number limit?
You can rename up to 1000 files per batch!
- 3. Does it work with folders?
Yes, upload zipped folders to rename inside contents.
- 4. Will the original files be modified?
No, renamed copies are generated. Your originals stay safe.
- 5. Can I undo changes?
Yes, preview before final rename to avoid mistakes.
- 6. Does it require installation?
Nope! It’s 100% online and free to use.
- 7. Can I use it on mobile?
Yes, works great on Android & iOS devices.
- 8. Does it support batch renaming patterns?
Yes, you can apply prefix/suffix patterns too!
- 9. Will it auto-detect current extensions?
Yes, our tool smartly lists original file types.
- 10. What if a file doesn’t open after renaming?
That means format conversion is needed, not just renaming.