Data & Spreadsheets

Merge Excel Sheets

Combine multiple Excel or CSV files into a single workbook, one tab per file.

Processing Mode

100% Client-side. No file chunks are uploaded; conversion happens in your browser's RAM via WASM.

Privacy & Speed

Zero latency from uploads. Secure by design for sensitive financial or personal documents.

Local Hardware

Leverages your device's CPU/GPU for rendering and processing. Faster than traditional cloud conversion.

Access Related Data & Spreadsheets

CSV to JSON

Convert CSV data to JSON format for web development and data analysis.

JSON to CSV

Flatten JSON payloads into spreadsheet-friendly CSV files.

Split Sheet

Split a workbook into separate .xlsx files, one per sheet/tab.

Deduplicate Rows

Remove duplicate entries from your CSV or Excel files automatically.

PDF Tools

Merge PDF

Combine multiple PDF files into one single document locally in your browser.

Media Lab

GIF Maker

Convert MP4 or MOV videos into high-quality animated GIFs locally.

Smart Images

Background Remover (Color-Based)

Remove flat or near-solid backgrounds using color-distance detection, all processed locally.

Forms & Templates

Fill & Sign PDF

Fill out PDF forms and add your digital signature without uploading files.