Clean Tools
Data deduplication, text normalization, whitespace trimming, casing standardization, and spreadsheet cleaning tools — processed 100% locally in your browser.
Excel Duplicate Remover
Find and remove Excel duplicates (.xlsx, .xls) by selected columns or full rows. Preview duplicate groups and download cleaned files in total privacy.
Open Tool →Compress Excel
Compress Excel file online – reduce XLSX, XLS file size by removing empty rows and columns. Free, private, client-side tool. Download compressed Excel instantly.
Open Tool →CSV Compressor
Compress CSV file online – reduce CSV file size by removing empty rows and columns. Download as CSV, GZIP, or BZIP2. 100% private, no uploads.
Open Tool →XML Compressor
Compress XML file online – reduce XML file size by removing whitespace, comments, and empty nodes. Download as XML, GZIP, or BZIP2. 100% private, no uploads.
Open Tool →JSON Compressor
Compress JSON file online – reduce JSON file size by minifying, removing whitespace, and stripping comments. Download as JSON, GZIP, BZIP2, or ZIP. 100% private, no uploads.
Open Tool →Data Anonymizer
Anonymize sensitive PII, email addresses, phone numbers, credit cards, and IP addresses in Excel workbooks (.xlsx, .xls), CSV, JSON, or text files locally with 100% complete data privacy.
Open Tool →Data Cleaning FAQ
What are Data Cleaning Tools?
Data cleaning tools remove duplicate records, trim whitespace, normalize text encodings, and sanitize spreadsheet datasets locally in your browser memory.