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Data and document tools

Convert spreadsheets, documents, and zip files. Your files stay on your device. 10 tools · free, no sign-up

Using toolbook means you agree to our Terms and Privacy Policy.

Most popular

Excel to CSVTurn Excel sheets into CSV files.CSV to JSONTurn CSV rows into JSON.Markdown ConverterTurn Markdown into HTML, PDF, or Word.

All Data tools10

xlsx→csvExcel to CSVTurn Excel sheets into CSV files.csv→xlsxCSV to ExcelTurn CSV files into a proper Excel workbook.csv→jsonCSV to JSONTurn CSV rows into JSON.json→csvJSON to CSVTurn JSON into a table for Excel or Google Sheets.csv→csvCSV CleanerFix a CSV that won’t import properly.md→pdfMarkdown ConverterTurn Markdown into HTML, PDF, or Word.docx→pdfWord ConverterTurn a .docx file into PDF, HTML, or plain text.cv→docxATS Resume CheckerSee what job application software reads from your resume.files→zipZip FilesZip files up, or open a zip and take files out.mb→gbData Storage ConverterMB, GB, and TB — and why your drive shows less than you paid for.

About these tools

Turn a spreadsheet into CSV, CSV into Excel or JSON, Markdown or Word into PDF, fix a CSV that won’t import, or zip up a pile of files. Free, quick, and no sign-up.

The spreadsheet tools are careful with your data. Zip codes and phone numbers keep their leading zeros, long account numbers don’t get rounded, and dates like 03/04/2024 — which mean different days in different countries — are left exactly as they are.

The document tools keep your words, headings, lists, and tables, but rebuild the layout. If anything couldn’t be converted perfectly, they tell you what.

These files are often payroll exports, customer lists, and contracts. That’s why everything works on your device and your files are never sent anywhere.

Questions people ask

Can anyone else see my spreadsheets and documents?

No. Every tool works on your device, so your files are never sent anywhere. Each tool shows a counter to prove it: 0 bytes sent.

Can these tools open old .xls and .doc files?

No. Those older formats are completely different. Open the file in Excel, Word, or Google Docs and save it as .xlsx or .docx first.

Why doesn’t my PDF look exactly like my Word document?

It’s rebuilt from your document’s content, not its exact page layout. For a pixel-perfect copy, use Word’s own “Save as PDF”.

How do I stop Excel from removing leading zeros in my CSV?

Use CSV to Excel instead of opening the CSV directly. It keeps 00123 as 00123.

Is there a file size limit?

No limit from us. Very large files may just be slower on older devices.