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Calculators & units
Convert units, compare dates and calculate numbers locally.
Length converter
Convert metric and imperial lengths.
Open toolMass converter
Convert grams, kilograms, pounds, ounces and more.
Open toolTemperature converter
Convert Celsius, Fahrenheit and Kelvin temperatures.
Open toolArea converter
Convert square units, hectares and acres.
Open toolVolume converter
Convert liters, cubic units and labeled US or UK measures.
Open toolSpeed converter
Convert meters per second, km/h, mph and knots.
Open toolData size converter
Convert bits, bytes and distinct SI or IEC data units.
Open toolNumber statistics
Calculate count, sum, mean, median and standard deviation.
Open toolPercentage calculator
Find a percentage, a ratio or a percentage change.
Open toolFraction calculator
Add, subtract, multiply or divide exact integer fractions.
Open toolSimplify ratio
Reduce two integers to their simplest ratio.
Open toolDate difference
Count calendar days between two dates without DST drift.
Open toolAdd or subtract days
Shift a calendar date by a signed number of days.
Open toolTime zone converter
Show an offset-qualified instant in selected IANA time zones.
Open toolDuration calculator
Add or subtract signed hours, minutes and seconds.
Open toolAge calculator
Calculate completed calendar years and total days between two dates.
Open toolAspect ratio calculator
Simplify an image ratio and calculate proportional target dimensions.
Open toolRandom integer generator
Generate bounded random integers using browser cryptographic randomness.
Open toolRoman numeral converter
Convert canonical Roman numerals and integers from 1 to 3999.
Open toolScientific expression calculator
Evaluate arithmetic and selected math functions without executing JavaScript.
Open toolBusiness day calculator
Count Monday–Friday days and optionally exclude a supplied holiday list.
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Browse every tool by category
Choose a category to reveal its complete list. All tools have their own instructions, supported formats and limits.
Image tools35 tools
Adjust brightness, resize, crop, compress and convert JPG, PNG and WebP images in your browser.
View category- Image brightness
- Image contrast
- Resize image
- Crop image
- Rotate image
- Flip image
- Compress image
- Convert to JPG
- Convert to PNG
- Convert to WebP
- Grayscale image
- Add image watermark
- Blur image
- Image saturation
- Invert image colors
- Sepia image
- Image threshold
- Posterize image
- Pixelate image
- Sharpen image
- Image vignette
- Image warmth
- Gamma correction
- Shift image hue
- Image opacity
- Round image corners
- Add image border
- Add image padding
- Trim transparent pixels
- Image pixel color
- Extract image palette
- Image information
- Image to ICO
- Image to BMP
- Image contact sheet
PDF tools23 tools
Turn images into a PDF, combine documents and organize pages without uploading your files.
View category- Images to PDF
- Merge PDF
- Split PDF
- Rotate PDF
- Remove PDF pages
- Reorder PDF pages
- PDF metadata viewer
- Add PDF page numbers
- Add PDF watermark
- Insert blank PDF pages
- Duplicate PDF pages
- PDF multiple pages per sheet
- Crop PDF margins
- Resize PDF pages
- Edit PDF metadata
- Clear PDF metadata
- Interleave PDF pages
- PDF to text
- PDF to PNG
- PDF to JPG
- PDF to WebP
- Flatten PDF to images
- PDF bookmark list
File & data converters18 tools
Convert CSV and JSON, encode images and bundle your files into a ZIP on your device.
View categoryText tools28 tools
Count, clean, reorder and reformat your text without sending it anywhere.
View category- Word counter
- Text case converter
- Remove duplicate lines
- Sort lines
- Clean whitespace
- Find and replace
- Lorem ipsum generator
- Reverse text
- URL slug generator
- Text line difference
- Number text lines
- Line prefix and suffix
- Filter text lines
- Shuffle text lines
- Repeat text
- Wrap text lines
- Word frequency
- Remove diacritics
- Unicode normalization
- Text to code points
- Code points to text
- Text to Morse code
- Morse code to text
- HTML to plain text
- SRT to VTT
- VTT to SRT
- Shift subtitle timing
- Markdown to safe HTML
Developer tools36 tools
Format JSON, encode text, generate UUIDs and passwords, and calculate hashes in your browser.
View category- JSON formatter
- JSON minifier
- Base64 encode
- Base64 decode
- URL encode
- URL decode
- HTML escape
- HTML unescape
- UUID generator
- Password generator
- SHA-256 hash
- Unix timestamp converter
- URL parser
- Query string builder
- Query string parser
- JWT decoder
- Regular expression tester
- JSON difference
- Sort JSON keys
- Flatten JSON
- Unflatten JSON
- Escape JSON string
- Unescape JSON string
- Text to hexadecimal
- Hexadecimal to text
- Text to binary
- Binary to text
- Number base converter
- File checksum
- HMAC generator
- JSON to TypeScript
- IPv4 subnet calculator
- Cron expression inspector
- CSS px rem em converter
- Remove URL tracking parameters
- Base64 to file
Color tools13 tools
Convert color values and check the contrast of foreground and background colors.
View categoryCalculators & units21 tools
Convert units, compare dates and calculate numbers locally.
View category- Length converter
- Mass converter
- Temperature converter
- Area converter
- Volume converter
- Speed converter
- Data size converter
- Number statistics
- Percentage calculator
- Fraction calculator
- Simplify ratio
- Date difference
- Add or subtract days
- Time zone converter
- Duration calculator
- Age calculator
- Aspect ratio calculator
- Random integer generator
- Roman numeral converter
- Scientific expression calculator
- Business day calculator
Excel tools42 tools
Unprotect authorized sheets, convert spreadsheets and clean table data on your device.
View category- Unprotect Excel sheets
- Unprotect workbook structure
- Remove read-only recommendation
- Excel protection report
- Unhide Excel sheets
- Unhide Excel rows and columns
- Freeze Excel panes
- Excel print settings
- Remove Excel hyperlinks
- Excel metadata viewer
- Clear Excel metadata
- Excel to CSV
- CSV to Excel
- Excel to JSON
- JSON to Excel
- Excel to TSV
- TSV to Excel
- Excel to HTML table
- Excel to Markdown
- Excel to ODS values
- ODS to Excel values
- XLS to XLSX values
- Excel workbook information
- Merge Excel files (values)
- Split Excel sheets (values)
- Extract Excel sheet (values)
- Append Excel rows
- Remove duplicate Excel rows
- Remove empty Excel rows
- Remove empty Excel columns
- Sort Excel rows
- Filter Excel rows
- Select Excel columns
- Transpose Excel values
- Trim Excel cell text
- Find and replace Excel text
- Excel formula report
- Excel formulas to saved values
- Compare Excel cell values
- Excel column statistics
- Excel table to PDF
- Split Excel by column value
QR & barcode tools6 tools
Create QR codes, read QR images and generate barcodes locally.
View categoryAudio tools8 tools
Trim, join and transform supported audio into WAV copies.
View categorySEO & web tools10 tools
Create web metadata and inspect pasted HTML without crawling a server.
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