Free PDF, Image, Calculator
and Web Tools
Merge PDFs, compress images, calculate GST, create documents, and check websites — with practical tools that work without an account.
- No Signup
Required - Free to
Use - No Install
Needed - Ad-supported,
tools stay free
Open a tool, finish the job, leave.
- FIND
- RUN
- RESULT
Find the right tool, complete the task, and get back to what you were doing.
300+ free tools across
12 categories
Built and maintained by Bhavin J. Sheth·Last modified: September 02, 2026
Everyday file, GST and site jobs — in one catalog, no account
Related jobs sit together: merge a PDF, compress it, then add GST on the invoice. File tools that can run on-device stay in the browser. SSL, DNS and status checks contact only the host you enter.
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Related tools, one catalog.
Finish merge PDF, then compress the same file — both sit in the PDF group, not on different websites.
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Built around practical everyday work.
GST, construction-cost, and invoice tools support common business and project tasks in India.
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New tools go live on this site.
The catalog is updated as new practical tools are added, so related tasks can stay in one place.
Find the Right Tool for the Job
12 categories covering PDFs, images, calculations, documents, SEO, and web tasks.
Pick a category and open a tool.
Web & Tech Tools
70 ToolsDNS, SSL, status, headers and robots.txt — checks against the host you enter.
View all Web & Tech ToolsCalculation Tools
104 ToolsGST, EMI, BMI, and age — Indian tax and loan math without a spreadsheet.
View all Calculation ToolsPDF Tools
53 ToolsMerge, split, compress, and convert PDFs with focused browser-based tools.
View all PDF ToolsImage Tools
30 ToolsCompress, convert, crop and resize images. Most jobs run on-device.
View all Image ToolsText & Language Tools
25 ToolsCount words, change text case, check grammar, and handle common text-editing tasks.
View all Text ToolsContent Writing & SEO Tools
34 ToolsCheck keywords, meta tags, and on-page basics.
View all SEO ToolsSocial Media Tools
18 ToolsGenerate hashtags, bios, titles and post drafts for YouTube, Instagram, LinkedIn and Twitter.
View all Social Media ToolsSecurity & Privacy Tools
25 ToolsGenerate passwords, encode data, and run basic SSL and hash checks.
View all Security ToolsInvoice & Billing Tools
16 ToolsCreate invoices, receipts and salary slips as downloadable PDFs.
View all Invoice ToolsConstruction Cost Estimators
33 ToolsEstimate construction, material, paint, brick, cement and more before you build.
View all Construction ToolsNo account. Output on the same page.
Three steps. Then you leave.
- 01
Find the tool
Search or pick a category. Open the tool you need.
- 02
Run it
Enter your input or upload a file. Get the result on the same page.
- 03
Get your result
Copy, save, download, or use the result — depending on the tool.
What Do You Want to Do?
Match the job to a tool.
| What You Want to Do | Tool to Use | What You'll Get | Best For |
|---|---|---|---|
| Add a QR code to an invoice | QR Code Generator → | PNG/SVG QR you can paste on an invoice, menu or poster | Invoices, menus, shop posters |
| Split GST on a service invoice | GST Calculator → | GST amount and the invoice total | Indian GST invoices |
| Merge a resume and certificates into one PDF | Merge PDF → | One combined PDF file for easy sharing or uploading | Job applications & tenders |
| Compress product images for a website | Image Compressor → | Smaller images with good quality for faster loading | Website & WhatsApp media limits |
| Create an invoice for a client | Invoice Generator → | Professional invoice ready to download or share | Freelancers & small agencies |
| Check whether a server is offline or online | Server Status Checker → | Website reachability and available response-time details | Uptime & DNS checks |
| Generate a strong password for a new account | Password Generator → | A randomly generated password using the options you choose | New accounts & admin panels |
| Reduce a PDF before sending it on WhatsApp | PDF Compressor → | A smaller PDF that's easier to share on WhatsApp or email | WhatsApp & email attachments |
Straight answers
Files, GST, ads, and what stays in your browser.
300+ free tools across 12 categories — PDF and image files, calculators, invoices, text, SEO and web checks. No account needed.
One catalog for everyday jobs: open a tool, finish the task, close the tab. No sign-up walls between you and the tool.
No. AllInOneTools is designed so you can use the tools without creating an account or signing in.
Yes. Tools on this site are free to run without an account. The site is ad-supported.
Yes. Layouts adapt to phones. Heavy PDF or image jobs still work best on a desktop because they use your device memory.
Many PDF, image, and calculator tools run directly in your browser. Network-based tools — SSL checker, DNS lookup, server status, URL shortener, and some SEO checks — need network access to contact the site or server you enter.
On-device tools (PDF, image, calculators) process files locally in your browser. Network tools only contact the target you enter. See our Privacy Policy.
On-device tools don't use one fixed upload limit — the practical limit depends on your browser and device memory. Some tools also show a specific size cap on the tool page itself.
Yes. Advertising helps keep the tools free to use. Ads are placed separately from the tool's input fields and results.
No. Estimators and calculators are indicative only — for contracts, taxation, or legal decisions, confirm with a qualified professional.
Technical Guides
Go behind the tools and learn how browser-based utilities work.
How to Build Browser-Based PDF Tools
Step-by-step guides to building PDF merge, split, compression tools and more with JavaScript and browser-based technologies.
Website & Technology Guides
Practical guides for checking websites, domains, DNS, IP addresses, and other everyday web tasks.
Browser-Based Image Processing
Explore how modern browsers can compress, resize, crop, and convert images without sending every task to a server.
Find a tool.
Get it done. Move on.
Open merge PDF, GST, image compress, or a status check — finish the job, download, leave.
- No Signup
Required - Free to
Use - On-device PDF
& image tools
Open it. Finish it. Close the tab.