Crazlee — Private Tools
Private tools — your files never leave your browser
Free tools that respect your privacy
Merge a PDF, compress an image, format an APA reference, or check simple statistics — all in your browser. No signup. No uploads. No paid API. No server storing your files.
All Phase 1 tools
Merge PDFCombine PDFs into one file.Split PDFExtract pages from a PDF.Images to PDFTurn JPG/PNG images into a PDF.Compress ImageReduce image size in your browser.Resize ImageChange image width and height.Convert ImageConvert JPG, PNG and WebP.Word CounterCount words, characters and sentences.Case ConverterUpper, lower, title and sentence case.QR Code GeneratorMake a QR code for text or a URL.Password GeneratorStrong random passwords, made locally.APA GeneratorRule-based APA 7th references.Research Title BuilderBuild a clear research title.IV & DV FinderSpot the independent and dependent variable.Hypothesis MakerWrite H0 and H1 from your variables.Descriptive Statistics CalculatorMean, median, mode, SD and range.
Why Crazlee is different
- Private: tools run on your device. If you close the page, your files are gone from the tool — because they never left.
- Free core tools: no signup wall for the tools on this page.
- Honest academic tools: the APA generator is rule-based, not AI guessing, and statistics results show their workings.
- Fast: a static site with no database and no heavy plugins.
Start with these
Students: try the APA Generator, IV & DV Finder, and Descriptive Statistics Calculator. Office work: try Merge PDF, Compress Image, and Word Counter.