Quick Tools by Stacklor
20+ free tools for developers, office users, and finance professionals.
JSON Formatter
Format, validate, and beautify JSON instantly
Open toolMerge PDF
Combine multiple PDFs into a single file
Open toolSplit PDF
Extract specific pages from your PDF
Open toolCompress PDF
Basic structural reduction of PDF size
Open toolEdit PDF
Add text securely to your PDF
Open toolRotate PDF
Rotate all pages in your PDF
Open toolDelete PDF Pages
Remove unwanted pages from a PDF
Open toolWatermark PDF
Stamp a watermark across your document
Open toolBrowse by Category
Developers
Essential tools for software developers. Format JSON, test regex, minify CSS, convert XML, check your IP, decode JWT, and more.
12 tools →Office Tools
Productivity tools for office work and business. Count words, merge PDFs, compress images, and generate QR codes.
4 tools →Finance
Financial calculators. Calculate EMI, SIP, GST, income tax, salaries, and percentages easily.
6 tools →Text Tools
Text manipulation and analysis tools. Convert case, compare text, and generate placeholder content.
3 tools →Converters
Convert between different formats and units. Image formats, unit conversions, and more.
2 tools →Generators
Generate random data and secure passwords. UUID generator, password generator, and more.
1 tools →Utilities
Everyday utility tools. Pick colors, set countdown timers, convert units, and more.
2 tools →PDF Tools
Client-side tools to manipulate, protect, and extract data from PDF files securely in your browser.
10 tools →