The Swiss Army knife of browser tools.
Count words, merge PDFs, compress images, format code, and mock up social posts. Every tool runs right on your device, so your files stay private.
- Files never leave your device
- Instant results, no waiting
- Free forever, no account
Try a few tools
These work right here. Open any one for the full version.
PDF toolkit
Merge, split, compress, sign, and OCR PDFs. Files are processed on your device and never uploaded.
Social mockups
Realistic mockups for presentations, tutorials, and design reviews.
Browse by category
Text Tools 13
Count words, keywords, characters, and clean drafts in the browser.
Word Counter, Byte & Character Counter, Case Converter
ExploreDeveloper Tools 12
Format JSON, encode Base64, test Regex, decode JWTs, and diff text.
JSON Formatter & Validator, Base64 Encoder / Decoder, URL Encoder / Decoder
ExplorePDF Tools 13
OCR scans, convert pages to JPG, sign, crop, merge, and rotate PDFs.
Merge PDF, Split PDF, Image to PDF Converter
ExploreImage Tools 9
Compress, resize, convert, crop, and optimize images in the browser.
Compress Image, Resize Image, Convert Image
ExploreConverters 6
Convert HEX to CMYK, px to rem, timestamps, units, and JSON/CSV.
Universal Unit Converter, CSS Unit Converter, Color Code Converter
ExploreCalculators 8
Financial, date difference, percentage, and health calculators.
Percentage Calculator, Discount & Sales Tax Calculator, Date Difference & Duration Calculator
ExploreMisc Tools 4
Barcodes, QR codes, secure passwords, and API key generators.
Barcode Generator, QR Code Generator, Random Password Generator
ExploreSocial Media Tools 12
Instagram DM, post, and story mockups, X posts, and earnings estimates.
Instagram Filters, Instagram Post Generator, Instagram Story Generator
Explore
Most used
- Word CounterCount words, characters, sentences, paragraphs, and reading time.
- Byte & Character CounterCount UTF-8 bytes, characters, letters, digits, and whitespace.
- Keyword Frequency CounterCount occurrences and density percentages for each word.
- Instagram DM GeneratorBuild realistic Instagram Direct Message chat threads with incoming and outgoing bubbles.
- Tweet / X Post GeneratorCreate realistic Tweet / X post mockups with verified badges, metrics, and Dark/Dim/Light themes.
- Twitter / X Earnings CalculatorEstimate X creator payouts from impressions, RPM, and subscriptions.
- CSS Unit ConverterConvert px to rem, em, vw, vh, and percentage units.
- Color Code ConverterConvert HEX, RGB, HSL, and CMYK color codes.
- Rotate PDFRotate all or selective PDF pages by 90°, 180°, or 270°.
- Merge PDFCombine multiple PDF files into one document.
- JSON Formatter & ValidatorFormat, minify, and validate JSON data.
- Compress ImageReduce PNG, JPG, and WebP image file sizes.
All 77 tools
Text Tools13
View all →Developer Tools12
View all →PDF Tools13
View all →Image Tools9
View all →Converters6
View all →Calculators8
View all →Your files stay on your device
Most free tools upload your file to a server. Swizztool does the work inside your browser, so contracts, photos, and drafts never leave your device.
Runs on your device
Text, PDFs, and images are processed locally.
Fast on any connection
No upload or download wait for big files.
Free, no account
No trial, no watermark, no email required.
Social Media Tools12
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