Small, sharp tools for your everyday numbers, text, and files.
Fifty-five calculators, converters, text tools, developer tools, a resume builder, PDF/image tools, and marketing tools, each built to answer one question well. Pick a tool below — every page runs entirely in your browser.
Percentage Calculator
Find percentages, increases, decreases and reverse percentages in one field.
Open toolWord & Character Counter
Live word, character, sentence and reading-time counts as you type.
Open toolUnit Converter
Convert length, weight and temperature without unit-conversion charts.
Open toolBase64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text.
Open toolCGPA ↔ Percentage Converter
Convert CGPA to percentage or back, with the common Indian 10-point formula.
Open toolSimple & Compound Interest Calculator
Compare simple vs. compound interest on the same principal side by side.
Open toolEMI calculators for personal, home and gold loans, GST and CTC calculators, plus maturity calculators for SIP, PPF, NPS, Sukanya Samriddhi, FD and RD. Figures are estimates for planning — always confirm exact terms with your bank, employer, or scheme provider.
Personal Loan EMI Calculator
Work out monthly instalments and total interest on a personal loan.
Open toolHome Loan EMI Calculator
Home loan EMI, total interest, and a note on available tax benefits.
Open toolGold Loan Calculator
Estimate your eligible loan amount from gold weight, purity and today's rate.
Open toolSIP Calculator
Project the maturity value of a monthly mutual fund SIP investment.
Open toolPPF Calculator
Estimate your Public Provident Fund maturity value over its 15-year term.
Open toolNPS Calculator
Estimate your NPS retirement corpus, lump sum, and illustrative monthly pension.
Open toolSukanya Samriddhi (SSY) Calculator
Estimate the maturity value of a Sukanya Samriddhi Yojana account.
Open toolFD Calculator
Work out the maturity value of a Fixed Deposit with quarterly compounding.
Open toolCTC to In-hand Salary Calculator
Estimate monthly take-home pay from an annual CTC figure.
Open toolRule-based text analysis and generation — readability, summarizing, similarity, diffing, and more — calculated with plain algorithms in your browser. No language model, no data sent anywhere.
Text Similarity Checker
Compare two texts and see how much of their wording overlaps.
Open toolText Diff Checker
Compare two texts and see exactly what was added, removed, or changed.
Open toolLorem Ipsum Generator
Generate placeholder text by paragraphs, sentences, or words.
Open toolRegex testing, hashing, and UUID generation — the small utilities developers reach for constantly, with no install and no data leaving your browser.
Build a full resume with your own custom sections and download it as a PDF — no account, no watermark.
Resume Builder
Build a resume with custom sections, 13 templates, and one-click PDF download.
Open toolMerge, split and resize PDFs, turn images into PDFs and back, remove backgrounds, add watermarks, generate barcodes and memes — all processed locally in your browser, nothing uploaded.
PDF Image Extractor
Pull out each individual image embedded in a PDF's pages, not just a page screenshot.
Open toolImage Resizer
Change an image's pixel dimensions (width/height) — not its file size.
Open toolImage to Base64
Convert an image to a Base64 data URI, or turn one back into a file.
Open toolAI Background Remover
Remove the background from a photo automatically using an in-browser AI model.
Open toolImage Compressor
Shrink an image's file size at the same dimensions — quality slider, before/after size shown.
Open toolImage Cropper
Crop an image to an exact area, or a preset aspect ratio, before downloading.
Open toolFavicon Generator
Turn an image into a full favicon set: .ico, PNG sizes, and the HTML tags to use them.
Open toolImage Color Picker
Click anywhere on an image to get its exact color, plus a dominant-color palette.
Open toolImage Watermark Tool
Add a text or logo watermark to an image, positioned and styled your way.
Open toolBarcode Generator
Generate a scannable barcode (CODE128, EAN-13, UPC) from text or numbers.
Open toolGenerate the meta tags and campaign links that go into every page and post, with instant previews.
Why this kit exists
Most "all-in-one" calculator sites bury a single working tool under pop-ups, intrusive interstitials, and unrelated content. SmartWebTools takes the opposite approach: each tool is its own page, built to load fast, explain what it's doing, and give you a straight answer without extra steps.
How to use it
Open any tool from the grid above, enter your numbers or text, and read the result panel — each page also includes a short explainer beneath the calculator if you want to understand the formula behind the answer, not just the number itself. Can't find something? Use the search box or "All Tools" menu in the header from any page.
Frequently asked questions
Is SmartWebTools really free to use?
Yes — every tool on this site is free, with no sign-up, no per-use limits, and no watermarks on anything you download. The site is supported by lightweight advertising rather than charging for tools.
Is my data safe when I use these tools?
Yes — almost every tool runs entirely in your browser using JavaScript, so your files, text, and numbers are processed locally and never uploaded to a server. A few tools (like the AI Background Remover) download a small model to your browser but still process your image locally, not on a remote server.
Do I need to install anything to use these tools?
No — every tool works directly in your web browser on desktop or mobile, with no software to download or install (aside from a couple of tools that fetch a small library or AI model into the page itself on first use).
How do I find a specific tool quickly?
Use the search box in the header (type a few letters and matching tools appear instantly), or open the "All Tools" dropdown menu, which lists every tool grouped by category — both are available from any page on the site.
Can I use these tools on my phone?
Yes — the site is designed to work on both desktop and mobile browsers, though tools involving detailed dragging (like the Image Cropper) are easiest to use with a mouse on a larger screen.