Everyday tools that run in your browser.
Resize images, make QR codes, sign PDFs and do quick math. No sign-up, no uploads, nothing leaves your device.
Your files stay on your devicePopular tools
Compress imageMake photos and images smaller without visible quality loss.Resize imageChange the size of one image or many: exact pixels, a percentage, or ready sizes for Instagram, YouTube, Facebook and more.Add watermark to photosPut your name or logo on photos.Remove EXIF data from photosSee the hidden data in your photos, like GPS location, camera and date, and remove it without losing quality.Crop imageCrop photos to any size or aspect ratio, make round profile pictures, and rotate or flip them.QR code generatorDesign a QR code that matches your brand: colors, shapes and a logo.Barcode generatorMake barcodes, QR codes and product labels in 15 formats, with the check digit worked out for you.Bulk barcode generatorMake hundreds of barcodes or QR codes at once from a number range or a CSV file.Merge PDFCombine several PDF files into one.Image to PDFTurn photos and scans into one PDF.Organize PDFRearrange, rotate, duplicate and delete PDF pages, add blank pages or pages from other PDFs.Sign PDFAdd your signature, text or today’s date to a PDF.Discount calculatorSee the final price after a sale, extra discounts and a coupon.Mortgage calculatorEstimate your monthly house payment with taxes, insurance, PMI and HOA.Compound interest calculatorSee how savings grow with compound interest and regular contributions, year by year.Age calculatorFind an exact age in years, months and days, plus total days, the day you were born and your next birthday.Date difference calculatorCount the days, weeks and business days between two dates, or add and subtract days from a date.Unit converterConvert length, weight, temperature, volume, area and speed between US and metric units on one page.BMI calculatorWork out your body mass index from height and weight, in US or metric units, with the healthy weight range for your height.GPA calculatorCalculate your weighted and unweighted GPA on the 4.0 scale, and your new cumulative GPA.Random number generatorPick random numbers in any range: one or thousands, with or without repeats, whole numbers or decimals.Giveaway winner pickerPick fair random winners from a list of names, emails or usernames.Dice rollerRoll one to six 3D dice and see the total.DnD dice rollerRoll 3D d4, d6, d8, d10, d12, d20 and d100 dice for D&D and other tabletop games.Wheel spinnerType your options, spin the wheel and let it decide.IP subnet calculatorWork out the network, broadcast, mask and host range for any IPv4 or IPv6 address, and split a network into smaller subnets.NVR and CCTV storage calculatorFind out how many days of video your NVR can keep, or how big a hard drive you need, for any mix of security cameras.Streaming bitrate calculator for OBSGet the right OBS bitrate, resolution and encoder settings for Twitch or YouTube based on your upload speed and connection quality.JSON formatterPaste JSON to format it, check it for errors or make it compact.Password generatorCreate strong random passwords.JWT decoder and generatorDecode a JSON Web Token, check its expiry, verify the signature with a secret or public key, or create and sign a new token.Color converterConvert colors between HEX, RGB, HSL, HSV, CMYK and OKLCH, with tints, shades and contrast.Word counterCount words, characters, sentences and paragraphs as you type.Case converterChange text to Sentence case, lower case, UPPER CASE, Title Case, camelCase, snake_case and more.Text diff checkerPaste two versions of a text and see exactly what was added, removed or changed, line by line or word by word.
Image Tools
Compress imageMake photos and images smaller without visible quality loss.Resize imageChange the size of one image or many: exact pixels, a percentage, or ready sizes for Instagram, YouTube, Facebook and more.Convert imageConvert images between JPG, PNG, WebP, AVIF, GIF, BMP, ICO and TIFF.Add watermark to photosPut your name or logo on photos.Remove EXIF data from photosSee the hidden data in your photos, like GPS location, camera and date, and remove it without losing quality.Crop imageCrop photos to any size or aspect ratio, make round profile pictures, and rotate or flip them.PNG to JPG converterTurn PNG images into smaller JPG files.JPG to PNG converterTurn JPG photos into PNG images, for editing or for apps that need PNG.WebP to JPG converterTurn WebP images saved from websites into JPG files that open everywhere.JPG to WebP converterMake images for your website smaller by converting JPG or PNG to WebP.AVIF to JPG converterTurn AVIF images into JPG files for apps and sites that don’t support AVIF yet.PNG to ICO converterMake a favicon.ico from a PNG or JPG, with 16, 32, 48 and larger sizes in one file.HEIC to JPG converterTurn iPhone HEIC photos into JPG files that open on any computer.
PDF Tools
Merge PDFCombine several PDF files into one.Split PDFKeep only the pages you need and save them as a new PDF.Image to PDFTurn photos and scans into one PDF.PDF to imageTurn each page of a PDF into a PNG or JPG picture.Organize PDFRearrange, rotate, duplicate and delete PDF pages, add blank pages or pages from other PDFs.Protect PDF with a passwordAdd a password to a PDF with AES-256 encryption, and optionally block printing, copying or editing.Unlock PDFRemove the password from a PDF you can open, or remove printing and copying restrictions.Sign PDFAdd your signature, text or today’s date to a PDF.
SoonWord to PDFNeeds a server, coming later
SoonPDF to WordNeeds a server, coming later
QR & Barcode Tools
QR code generatorDesign a QR code that matches your brand: colors, shapes and a logo.Barcode generatorMake barcodes, QR codes and product labels in 15 formats, with the check digit worked out for you.Bulk barcode generatorMake hundreds of barcodes or QR codes at once from a number range or a CSV file.QR code scannerUpload a photo or screenshot that contains a QR code and read what is inside.
Developer Tools
RAID calculatorSee how much usable space you get and how many drives can fail before you lose data.JSON formatterPaste JSON to format it, check it for errors or make it compact.Base64 encoder and decoderConvert text to Base64 and back.Password generatorCreate strong random passwords.Unix timestamp converterConvert Unix timestamps to dates and dates to timestamps.UUID generatorGenerate random UUID v4 or time-ordered UUID v7 in bulk, and check any UUID’s version.Hash generatorGet MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files, make HMACs, and compare checksums.URL encoder and decoderPercent-encode text for URLs or decode it back, and see the parts and query parameters of any URL.JWT decoder and generatorDecode a JSON Web Token, check its expiry, verify the signature with a secret or public key, or create and sign a new token.Cron expression generatorBuild and understand cron schedules: plain-English explanation, the next 10 run times, presets and a syntax cheat sheet.Chmod calculatorConvert Linux file permissions between checkboxes, numbers like 755 and symbols like rwxr-xr-x, and get the chmod command.Regex testerTest regular expressions with live highlighting, match groups and replace preview.Color converterConvert colors between HEX, RGB, HSL, HSV, CMYK and OKLCH, with tints, shades and contrast.Color picker from imagePick any color from a photo or screenshot with a magnifier, and get the main colors of the image.Color palette generatorMake color palettes from one color: harmonies, a 50–950 scale with CSS variables, and random palettes with locks.Color contrast checkerCheck text and background colors against WCAG AA and AAA, and get the closest passing color.
Network Tools
IP subnet calculatorWork out the network, broadcast, mask and host range for any IPv4 or IPv6 address, and split a network into smaller subnets.NVR and CCTV storage calculatorFind out how many days of video your NVR can keep, or how big a hard drive you need, for any mix of security cameras.IP to integer converterConvert IP addresses to decimal, hex and binary and back.MAC address lookup and formatterFind the manufacturer of a MAC address and convert it between colon, dash, Cisco and plain formats.GPON serial number converterConvert GPON and XGS-PON ONT serial numbers between the text form (HWTC1A2B3C4D) and the hex form (485754431A2B3C4D).Data rate converterConvert internet speeds and transfer rates: Mbps to MB/s, Gbps, KiB/s and data per hour, day or month.Download time calculatorFind out how long a download or upload will take at your internet speed, and what speed you need.Streaming bitrate calculator for OBSGet the right OBS bitrate, resolution and encoder settings for Twitch or YouTube based on your upload speed and connection quality.
Text Tools
Word counterCount words, characters, sentences and paragraphs as you type.Case converterChange text to Sentence case, lower case, UPPER CASE, Title Case, camelCase, snake_case and more.Text cleanerTidy messy text in one step: extra spaces, empty lines, ALL CAPS sentences, broken lines from PDFs and hidden characters.Text diff checkerPaste two versions of a text and see exactly what was added, removed or changed, line by line or word by word.Remove duplicate linesDelete repeated lines from a list, or show only the lines that repeat.Sort linesSort a list A to Z, Z to A, in number order or by length.Find and replaceReplace words or phrases throughout your text.Slug generatorTurn titles into clean, SEO-friendly URL slugs.Lorem ipsum generatorMake placeholder text for designs and mockups: paragraphs, sentences, words or list items, as plain text or HTML.
Random Tools
Random number generatorPick random numbers in any range: one or thousands, with or without repeats, whole numbers or decimals.Giveaway winner pickerPick fair random winners from a list of names, emails or usernames.Dice rollerRoll one to six 3D dice and see the total.DnD dice rollerRoll 3D d4, d6, d8, d10, d12, d20 and d100 dice for D&D and other tabletop games.Wheel spinnerType your options, spin the wheel and let it decide.
Calculators
Finance
Discount calculatorSee the final price after a sale, extra discounts and a coupon.Percentage calculatorQuick answers: a percent of a number, what percent one number is of another, and percent change.Tip calculatorWork out the tip and split the bill between friends.Sales tax calculatorAdd sales tax to a price, take it out of a total, or find the tax rate from your receipt.Mortgage calculatorEstimate your monthly house payment with taxes, insurance, PMI and HOA.Auto loan calculatorWork out your monthly car payment with trade-in, sales tax and fees.Compound interest calculatorSee how savings grow with compound interest and regular contributions, year by year.Hourly to salary calculatorConvert an hourly wage to a yearly salary and back.
Education
Health
BMI calculatorWork out your body mass index from height and weight, in US or metric units, with the healthy weight range for your height.Calorie calculatorEstimate how many calories you burn each day and how many you need to maintain, lose or gain weight.Body fat calculatorEstimate your body fat percentage with a tape measure, using the US Navy method.Ideal weight calculatorSee the healthy weight range for your height and what four classic ideal weight formulas estimate.
Date & Time
Converters
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