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Spreadsheets & Data tools

Clean, dedupe, merge, compare and convert Excel and CSV data.

Runs in your browser · No upload41 coming soon

Coming soon 41

Excel Viewer Coming soonOpen XLSX, XLS and ODS files without Excel and browse every sheet. CSV Viewer Coming soonOpen large CSV and TSV files as a searchable table, even past Excel's row limit. Fix CSV Encoding Coming soonConvert CSV between UTF-8 and legacy encodings so it opens cleanly in Excel. Remove Duplicate Rows Coming soonFind and remove duplicate rows in Excel or CSV based on the columns you pick. Remove Blank Rows & Columns Coming soonDelete empty rows and columns from Excel or CSV files in one step. Trim Spaces in Excel Coming soonStrip leading, trailing, double and non-breaking spaces and stray line breaks. Phone Number Formatter Coming soonNormalize mixed Korean phone numbers to one format, such as 010-1234-5678. Address Cleaner & Splitter Coming soonTidy Korean addresses and split them into region, district and detail columns. Keep Leading Zeros Coming soonStop Excel from dropping leading zeros in ZIP codes and IDs from CSV files. Fix Long Numbers in Excel Coming soonKeep long IDs in CSV from turning into 1.23E+15 or losing digits in Excel. Convert Text to Numbers Coming soonTurn text like "₩1,200" or "3,500 pcs" into numbers that sum and sort. Date Format Normalizer Coming soonConvert mixed dates like 2024.1.5, 01/05/24 or Excel serials into one format. Split Column Coming soonSplit one column into several by a delimiter or a fixed character count. Merge Columns Coming soonJoin values from several columns into one, with the separator you choose. Unmerge Cells & Fill Down Coming soonUnmerge cells and fill blanks with the value above so sorting and filters work. Merge Excel Sheets Coming soonStack all sheets of a workbook into a single sheet. Merge Excel & CSV Files Coming soonCombine several Excel or CSV files into one, as one sheet or a sheet per file. Split Excel & CSV Files Coming soonSplit a spreadsheet into multiple files by row count, column value or sheet. Compare Excel Files Coming soonCompare two spreadsheets cell by cell and highlight what changed. Compare Two Lists Coming soonFind the items two lists share and the items missing from either one. VLOOKUP Two Files Coming soonMatch two spreadsheets on a shared column and pull values across, like VLOOKUP. Pivot Table Maker Coming soonBuild pivot tables with sums, counts and averages grouped by fields you pick. Sort & Filter Spreadsheet Coming soonSort by multiple columns, filter rows by conditions and save the result. Select & Reorder Columns Coming soonKeep only the columns you need, reorder and rename them, then save. Transpose Rows and Columns Coming soonSwap rows and columns to flip a table between horizontal and vertical. Find & Replace in Excel Coming soonFind and replace across all sheets and files at once, with regex support. Random Row Sampler Coming soonPick a random number or percentage of rows from a spreadsheet. Column Statistics Coming soonSee count, blanks, unique values, mean, min and max for every column at once. CSV Data Validator Coming soonCheck rows against required, format and uniqueness rules and flag bad cells. Mask Personal Data Coming soonMask names, phone numbers and ID numbers in columns, e.g. 010-****-5678. CSV to Excel Converter Coming soonConvert CSV to XLSX, or export Excel sheets to CSV. XLS to XLSX Converter Coming soonConvert legacy XLS and ODS spreadsheets to modern XLSX. CSV Delimiter Converter Coming soonSwitch between comma, semicolon, tab and pipe delimiters with proper quoting. JSON to CSV Converter Coming soonConvert JSON arrays to CSV and CSV back to JSON, flattening nested fields. Excel to JSON Coming soonConvert Excel sheets to JSON arrays using the header row as keys. SQLite Viewer Coming soonOpen SQLite database files, browse tables and run SQL queries. XML to CSV Converter Coming soonTurn repeating XML elements into CSV rows, or build XML from CSV. HTML Table to CSV Coming soonTurn tables copied from web pages or HTML code into CSV or Excel. Query CSV with SQL Coming soonRun SQL on CSV, Excel and Parquet files with DuckDB and download the results. Excel Formula Explainer Coming soonBreak nested Excel formulas into functions and explain what each part does. CSV to Chart Coming soonMake bar, line and pie charts from CSV or Excel data and save as PNG or SVG.

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