Free Tools
Genuinely useful calculators and utilities — free, fast, and private. Built by our engineers for Sri Lanka and the world.
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Sri Lanka Toolkit
Calculators and references built for life and business in Sri Lanka — always current, always free.
Sri Lanka Salary Calculator
Gross salary → take-home pay: APIT (PAYE) tax, EPF and ETF, with a full monthly breakdown.
Open tool →APIT / PAYE Tax Calculator
Exactly how much income tax is deducted from your Sri Lankan salary, band by band.
Open tool →EPF / ETF Calculator
Employee and employer EPF/ETF contributions on any salary — see what goes into your retirement funds.
Open tool →NIC Number Decoder
Decode any Sri Lankan NIC number — birthday, age, gender and the day of the week you were born.
Open tool →VAT Calculator (18%)
Add or remove Sri Lankan VAT from any amount, with the exact tax portion shown.
Open tool →Electricity Bill Calculator
Estimate your CEB/LECO domestic bill from units used — block-by-block, on the current tariff.
Open tool →Sri Lanka Holidays 2026
Every public, bank, mercantile and Poya holiday in 2026 — plus the next holiday countdown and long weekends.
Open tool →Currency Converter (LKR)
Convert Sri Lankan Rupees to USD, EUR, GBP, INR, AUD and 30+ currencies at daily mid-market rates.
Open tool →Income Tax Return Calculator
Estimate your annual income tax (YA 2025/26): employment, rental, business and interest income, with reliefs.
Open tool →Loan & Leasing Calculator
Monthly installment and total interest for any loan — reducing balance or flat rate, with the true effective rate revealed.
Open tool →Fixed Deposit Calculator
Work out FD interest and maturity value — monthly or at maturity — with the 10% withholding tax (AIT) applied.
Open tool →Gratuity Calculator
Estimate the gratuity you're owed when leaving a job — half a month's salary for each completed year of service.
Open tool →Overtime Pay Calculator
Calculate your overtime pay at 1.5× the hourly rate under the Shop & Office Employees Act.
Open tool →Business Tools
Create professional invoices and quotations in minutes — free, private, no signup.
Invoice Generator
Create professional invoices with your logo and download them as PDF — free, no signup, with VAT and amount-in-words.
Open tool →Quotation Generator
Send polished price quotations and estimates as PDF — same easy builder as the invoice tool, with a validity date.
Open tool →Profit Margin Calculator
Work out profit, margin and markup from cost and price — or find the price to hit a target margin.
Open tool →Receipt Generator
Issue payment receipts as PDF — record who paid, how much, and how — completing the invoice-to-receipt flow.
Open tool →Digital Signature Maker
Draw or type your signature, download it as a transparent PNG, and place it onto any PDF — all in your browser.
Open tool →Security Tools
Check and strengthen your security posture, from passwords to server configuration.
Free Website Audit
Grade any website across SEO, security, performance and mobile in one click — with a prioritized fix list.
Open tool →Security Headers Scanner
Scan any website you own and grade its HTTP security headers, with copy-paste fixes.
Open tool →SSL Certificate Checker
Check any domain's TLS certificate — expiry countdown, issuer, and covered hostnames.
Open tool →Password Generator
Generate strong random passwords with custom length and character sets — entirely in your browser.
Open tool →Password Strength Checker
How long would your password survive a cracking attempt? Test it privately in your browser.
Open tool →Developer Tools
Fast, private, browser-based utilities for everyday development work.
QR Code Generator
Create QR codes for links, Wi-Fi, contact cards and text — download as PNG or SVG, no watermark.
Open tool →Hash Generator
SHA-256, SHA-512, SHA-1 and MD5 hashes of text or files — computed locally, never uploaded.
Open tool →Base64 Encode / Decode
Encode and decode Base64 text and files (data URIs) instantly in your browser.
Open tool →UUID Generator
Generate one or hundreds of random v4 UUIDs, ready to copy.
Open tool →Word & Character Counter
Live word, character, sentence and reading-time counts as you type or paste.
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