Open Tech Academy / Tools

Your files.
Your workspace.

Convert, organize, and work with files in your browser. The six utilities below process files on your device. Encrypted sharing uploads an encrypted copy when you choose to send a file.

Choose a tool

Free to use. No account needed.

Image Converter

Convert PNG, JPG, WEBP, BMP, and GIF with custom compression control.

Images

PDF Merge & Split

Combine multiple PDFs or extract pages/ranges into a ZIP folder.

PDF

CSV ⇄ JSON

Convert structured spreadsheet files into JSON arrays and back instantly.

Data

Text Toolkit

Format, clean, trim whitespace, change case, and analyze text statistics.

Text

Audio to WAV

Decode local MP3, OGG, or AAC audio and extract uncompressed WAV files.

Audio

ZIP Builder

Package multiple directories or groups of files into a compressed ZIP.

Archive

Image Converter

Convert images locally in your browser with real-time compression settings.

Drag and drop your image here, or browse files

Uploaded preview

PDF Merge & Split

Combine multiple PDF files or extract pages into a new document securely.

Merge PDF Files

Select and arrange multiple files to merge them into a single PDF.

Add PDF files to merge, or browse

Split PDF File

Split a PDF into single pages, or define custom page ranges to package in a ZIP.

Select PDF file to split, or browse

CSV ⇄ JSON Converter

Convert spreadsheet datasets to structured JSON objects and back locally.

Drag and drop a CSV or JSON file here, or browse

Text Toolkit

Clean and transform text strings or text files locally.

Drag and drop a text file here, or browse

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Audio to WAV Converter

Extract raw, uncompressed 16-bit PCM WAV tracks from common audio formats locally.

Drag and drop an audio file (MP3, OGG, M4A, etc.), or browse

ZIP Builder

Bundle multiple files into a single zip archive locally without uploads.

Select multiple files to compress, or browse

Open Tech Tools / File sharing

Encrypted Share

Encrypt a file in your browser, upload the encrypted copy, and send its link. The key is kept in the link’s URL fragment. Keep the complete link private.

Upload & Encrypt

Choose a file and set how long the encrypted copy can be downloaded.

Decrypt & Download

Paste a secure link or file ID to retrieve and decrypt the file on your device.

Part of Open Tech Academy

Useful tools. Open to everyone.

Open Tech Academy makes practical technology education accessible. These tools are free to use: conversions stay on your device, and sharing sends an encrypted copy through our servers.

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