Excel & CSV Batch Processing & Automation Tools
Merge, split, fix encoding, convert formats, mask sensitive data and more — all in your browser. No installation needed. Custom data processing tool development also available.
sales_01.xlsx / sales_02.xlsx
Powerful Features
Everything you need to handle Excel and CSV files at scale
Merge Files
Combine multiple Excel/CSV files into one
Split File
Split by row count or column values
Encoding Convert
Fix garbled text (Shift-JIS ↔ UTF-8)
Full/Half Width
Normalize full-width / half-width letters, digits and kana
Era ⇄ Year
Convert Japanese eras ⇄ Western years, normalize dates
Data Cleaning
Remove duplicate/blank rows and trim whitespace
Excel & CSV Editor
Edit XLS/XLSX/CSV directly in browser, export to XLSX/PDF
File Diff
Compare two Excel/CSV files and highlight added, deleted and changed rows
QR Code Batch
Generate QR codes from a list of URLs/text
Data Masking
Mask phone numbers and emails (numeric data preserved)
VLOOKUP Join
Merge two files on a common key (automated VLOOKUP)
Pivot Table
Auto-aggregate by rows, columns and function
PDF Report
Turn data into a PDF report with table and stats
Conditional Extract
Extract only rows matching your condition
3D Waterfall Chart
Visualize group data as a 3D waterfall chart
When to use it
Solve everyday spreadsheet problems instantly
Merge multiple Excel files into one
Monthly reports, branch data — drag & drop to combine scattered files in seconds.
CSV shows garbled Japanese text
Auto-detects Shift-JIS, UTF-8, EUC-JP. One click to convert and fix encoding issues.
Split a large file by assignee
Split by row count or column values. Distribute by department, person, or prefecture.
Mask personal data before sharing
Auto-detect and mask phone numbers and emails. Numeric data is never modified.
Generate QR codes in bulk
Batch-generate from a URL list for product tags, cards, and flyers. Download as a ZIP.
VLOOKUP-match two lists
Join files on employee ID or customer code. Automate lookup and reconciliation without formulas.
Fix mixed full/half-width and era formats
Normalize characters in one click. Convert Reiwa ↔ Western years and standardize mixed date formats.
3 simple steps
Upload your file
Drag & drop Excel (.xlsx) or CSV
Select a tool and run
Set options and click Process
Download the result
Preview the output and download
FAQ
Is it free to use?
Yes. File merge, split, encoding convert, full/half-width normalization, era convert, and data cleaning are completely free — up to 3 times per day with no registration.
Is it safe to upload my files?
Yes. Uploaded files are automatically deleted one hour after processing. All transfers are SSL-encrypted and our staff never access your file contents.
Which file formats are supported?
Excel (.xlsx, .xls) and CSV (.csv). The encoding converter also supports .txt and .tsv.
My CSV shows garbled text. What should I do?
Use the Encoding Convert tool. It auto-detects Shift-JIS, EUC-JP, and UTF-8 and converts to the correct encoding.
How much does a paid plan cost?
Day Pass ¥350 (24h, incl. tax), Monthly ¥1,280 (incl. tax, auto-renews), Yearly ¥9,800 (incl. tax, auto-renews). All 12 tools, no file size limit, and batch processing included.
Start free today
No registration needed. Just upload your file.
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