~/tools
Every tool in the bin.
92 free tools across 8 shelves. Private, fast and ready the moment the page loads. Nothing is uploaded.
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Shelves
ImagesConvert, resize, compress and caption pictures.20 toolsPDFMerge, split, convert and tidy up PDF files.12 toolsTextCount, clean, sort and compare any text.9 toolsDeveloperJSON, encoding, hashes, tokens and regex.14 toolsChartsTurn pasted data into clean charts.5 toolsCalculatorsMoney, dates, health and everyday sums.13 toolsQR codesQR codes that never expire, plus a scanner.7 toolsWebsitesAI crawler rules, domains and SSL checks.12 tools
0120 tools
Image tools
Convert, resize, compress and caption pictures.
All-in-one
Convert
JPG to PNGConvert JPG or JPEG images to PNG in your browser, one at a time or in a batch.PNG to JPGTurn PNG images into JPG to cut the file size.WebP to JPGConvert WebP images to JPG in your browser.WebP to PNGConvert WebP to PNG in your browser and keep transparent backgrounds.PNG to WebPConvert PNG images to WebP for faster websites.JPG to WebPConvert JPG photos to WebP to shrink file sizes for websites and shops.PNG to ICOConvert PNG, JPG or WebP to an ICO file for a website favicon or a desktop icon.
Resize
Resize image to 1080x1080Resize any picture to exactly 1080 x 1080 pixels for square social posts.Resize image to 1080x1350Resize photos to 1080 x 1350 pixels, the 4:5 portrait size that fills the most space in a feed.Resize image to 1080x1920Resize pictures to exactly 1080 x 1920 pixels, the 9:16 size for stories, reels and shorts.Resize image to 1920x1080Resize pictures to exactly 1920 x 1080 for wallpapers, slides and video thumbnails.Resize image to 1280x720Resize any image to exactly 1280 x 720 pixels, the standard video thumbnail size.Resize image to 1500x500Resize a picture to 1500 x 500 pixels, the 3:1 header and banner size for social profiles.
Compress
Compress JPEG to 20KBShrink an image to under 20 KB for strict upload limits, such as signatures and ID photos.Compress JPEG to 50KBCompress photos and signatures to under 50 KB for online forms and exam applications.Compress JPEG to 100KBShrink JPG and other images to under 100 KB for forms and upload limits.Compress JPEG to 200KBReduce JPG, PNG or WebP images to under 200 KB in your browser.Compress image to 1MBReduce large photos to under 1 MB while keeping them sharp.
0212 tools
PDF tools
Merge, split, convert and tidy up PDF files.
Combine and split
Merge PDFCombine several PDF files into one in your browser.Split PDFSplit a PDF into separate files by page ranges, pull out selected pages, or save every page on its own.Images to PDFCombine JPG, PNG and WebP pictures into a single PDF in your browser.JPG to PDFTurn JPG photos and scans into one PDF in your browser.PNG to PDFConvert PNG screenshots and graphics into a PDF in your browser.
Convert
Edit pages
039 tools
Text tools
Count, clean, sort and compare any text.
Count
Clean up
Case converterConvert text to UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case or CONSTANT_CASE.Remove duplicate linesDelete repeated lines from a list and keep the first copy of each, in its original order.Sort linesSort lines of text A to Z, Z to A, in natural number order, by length, in reverse or at random.Find and replace textFind and replace words or patterns in any text, with match case, whole words and regular expressions.
0414 tools
Developer tools
JSON, encoding, hashes, tokens and regex.
JSON and data
JSON formatterFormat JSON with 2 spaces, 4 spaces or tabs, minify it to one line, sort keys and browse it as a tree.JSON validatorCheck whether JSON is valid and see the line, column and a plain explanation of any error, such as a trailing comma or a missing quote.JSON to CSVTurn a JSON list of objects into CSV for Excel or Google Sheets.CSV to JSONConvert CSV or spreadsheet cells to JSON.JSON to YAMLConvert JSON to clean YAML with risky values such as yes, no and 1.10 quoted for you, or turn YAML with anchors, merge keys and block text into JSON.
Encode and decode
Base64 encode and decodeEncode text to Base64 or decode it back, with full UTF-8 support, URL-safe Base64 and file to data URL conversion.URL encode and decodePercent-encode a query value or a whole web address, or decode one back to readable text.JWT decoderDecode a JSON Web Token to read its header and claims, with exp, nbf and iat shown as dates.
Generate
UUID generatorMake random version 4 or time-ordered version 7 UUIDs with your browser's cryptographic random numbers.Password generatorMake strong passwords or easy-to-type passphrases with your browser's cryptographic random numbers.SHA-256 hash generatorGet the SHA-256 hash of any text or file, along with SHA-1, SHA-384, SHA-512 and MD5.
055 tools
Chart makers
Turn pasted data into clean charts.
Chart types
0613 tools
Calculators
Money, dates, health and everyday sums.
Money
Mortgage calculatorEstimate your monthly mortgage payment from the home price, down payment, rate and term.Loan calculatorWork out the monthly payment and total interest on a car loan, personal loan or any fixed-rate loan.Compound interest calculatorSee how savings grow with compound interest and regular deposits, compounded yearly to daily, with a year-by-year table.Discount calculatorFind the sale price after a percentage discount, stack a second discount, and add your local sales tax to see the final price and how much you save.Tip calculatorWork out the tip and split the bill between any number of people, with the option to round up each share or the total.
Dates and time
Age calculatorFind an exact age in years, months and days, plus total months, weeks and days, the weekday you were born and the days until your next birthday.Date difference calculatorCount the days, weeks, months and business days between two dates, or add and subtract days from a date.Time calculatorAdd and subtract hours and minutes, find the time between two times even over midnight, and add a duration to a clock time.
Everyday
Percentage calculatorWork out X% of a number, what percent one number is of another, percentage change, increase or decrease, and reverse percentages.Unit converterConvert length, mass, volume, temperature, area, speed, data size, time, energy, pressure and fuel economy with exact conversion factors.BMI calculatorCalculate body mass index in kg and cm or in pounds, feet and inches.GPA calculatorCalculate your GPA on the 4.0 scale from letter grades and credits.
077 tools
QR code tools
QR codes that never expire, plus a scanner.
Create
QR code generatorMake a QR code for any link, text, Wi-Fi network, contact or event.Wi-Fi QR codeMake a QR code that connects phones to your Wi-Fi network in one scan.vCard QR codeMake a QR code that saves your name, phone, email, company and address to a phone's contacts.QR code with logoPut your logo in the middle of a QR code and match your brand colours.Bulk QR code generatorTurn a list or CSV into hundreds of QR codes at once.
0812 tools
Website tools
AI crawler rules, domains and SSL checks.
All-in-one
AI crawlers
llms.txt generatorCreate an llms.txt file for your website with a live preview.robots.txt AI crawlersBuild robots.txt rules for GPTBot, ClaudeBot, Google-Extended, PerplexityBot and 20 more AI crawlers.Block GPTBotStop GPTBot from collecting your pages for model training with a two-line robots.txt rule.Block AI crawlersOne robots.txt block that stops GPTBot, ClaudeBot, CCBot, Bytespider, Google-Extended and the other major AI crawlers.robots.txt checkerPaste a robots.txt and see, for any page, whether GPTBot, ClaudeBot, PerplexityBot, Google-Extended and other crawlers are allowed or blocked, and which rule decides.
Domains and SSL
Domain expiry checkerCheck when one domain or a whole list expires.SSL certificate expiry checkerSee when the SSL certificates for your sites expire, who issued them and which names they cover, from public certificate transparency logs.WHOIS lookupLook up a domain's registrar, creation and expiry dates, status codes and nameservers using RDAP, the official successor to WHOIS.Domain expiry reminderNever lose a domain to a missed renewal.SSL expiry reminderFind when your SSL certificates expire and add reminders to Google Calendar, Apple Calendar or Outlook with one file.