All tools
Every core Toolzi utility runs locally in your browser. No upload, no account, no waiting around.
Fix, combine, and create PDFs without the upload drama.
Shrink, resize, and convert images right on your device.
Reduce image file size while keeping a useful preview.
ImageImage ResizerResize an image by width and height with aspect ratio lock.
ImageImage ConverterConvert images between JPG, PNG, and WebP.
ImageBackground RemoverRemove simple solid image backgrounds and download a transparent PNG.
ImageClean, count, and reshape messy text fast.
Quick math for money, dates, age, and percentages.
Calculate percentages, discounts, increases, decreases, and marks.
CalculateGST CalculatorAdd or remove GST and see base amount, tax, and total.
CalculateAge CalculatorCalculate age in years, months, days, and next birthday countdown.
CalculateDate Difference CalculatorFind the difference between two dates with include-end-date control.
CalculateUnit ConverterConvert length, weight, temperature, and speed.
CalculateBMI CalculatorCalculate body mass index from height and weight.
CalculateLoan / EMI CalculatorEstimate monthly loan payments.
CalculateMake useful things you can download, print, or share.
Create QR codes for URLs, text, email, phone, Wi-Fi, and contacts.
CreateInvoice GeneratorCreate a clean invoice locally and print or save it as PDF.
CreateSignature MakerDraw a signature on canvas and download it as PNG.
CreateBrat GeneratorMake a brat-style text meme with custom colors or transparent background.
CreateFavicon GeneratorGenerate simple favicon PNGs from text and colors.
CreateSmall local helpers for notes and tasks.
Format, convert, inspect, and debug without leaving the browser.
Pretty-print, minify, and validate JSON locally.
DeveloperBase64 Encode/DecodeEncode and decode Base64 text in your browser.
DeveloperURL Encode/DecodeEscape and unescape URLs or query strings.
DeveloperUUID GeneratorGenerate random UUIDs locally.
DeveloperRegex TesterTest regular expressions against sample text.
DeveloperColor Picker & ContrastPick colors and check WCAG contrast ratios.
DeveloperCSS Gradient GeneratorCreate simple CSS gradients visually.
DeveloperMarkdown to HTMLConvert Markdown into clean HTML.
DeveloperJSON ↔ CSV ConverterConvert simple JSON arrays and CSV data locally.
DeveloperDiff CheckerCompare two text blocks side by side.
DeveloperGenerate and inspect sensitive data locally.