PDF Guide
How to reduce PDF file size without losing quality
A practical guide to choosing sensible compression settings.
Editorial roadmap · Publishing after reviewFree tools for students and everyone
Free Online Tools & Study Resources for India
Simple, fast and secure online tools for PDFs, images, text and everyday tasks—plus helpful resources for Indian students.
Popular:PDF MergerImage CompressorWord CounterQR Code Generator
Popular Tools
View All ToolsPDF CompressorReduce PDF file size while keeping qualityComing soon
PDF MergerCombine multiple PDF files into oneImage CompressorCompress JPG, PNG and WebP imagesImage ResizerResize images to exact dimensionsComing soon
JPG to PDFConvert JPG images into a PDF fileComing soon
Word CounterCount words, characters and reading timeQR Code GeneratorCreate a downloadable QR code instantlyJSON FormatterFormat, validate and minify JSONTools by Category
Student & Education Resources
View EducationClass 11
Study guides for Maths, Physics and Chemistry
Explore resourcesClass 12
Board preparation and subject study guides
Explore resourcesNCERT
Textbook structure, chapters and study strategies
Explore resourcesCBSE
Practical preparation and study planning
Explore resourcesCompetitive Exams
Evergreen preparation resources for major exams
Explore resourcesLatest Helpful Guides
View All GuidesStudy Guide
How to prepare a clean study timetable
Build a realistic revision plan around school and practice.
Editorial roadmap · Publishing after reviewTechnology
Image file types explained: JPG, PNG and WebP
Know which image format to use for documents and the web.
Editorial roadmap · Publishing after reviewDeveloper Guide
How to check and format JSON safely
Find syntax errors and make structured data easier to read.
Editorial roadmap · Publishing after reviewFree to useNo sign up required
Fast & SecureWorks in your browser
Mobile FriendlyWorks on all devices
Made for IndiaStudents, professionals & everyone
Frequently Asked Questions
Are the tools on Sakalakaboomboom free?
Yes. The available tools are free to use and do not require an account.
Are my files uploaded to a server?
The current file tools process files in your browser. A tool will clearly disclose any future server processing before you use it.
Can I use these tools on mobile?
Yes. The interface is designed for phones, tablets and desktop computers.
How are education and exam details verified?
Time-sensitive syllabus, policy and exam information is checked against relevant official sources before publication.