Free online tools for Sri Lanka and everyday work
Browse 54 free, privacy-first calculators, developer utilities, fitness planners and document tools, including practical Sri Lankan tools in English, Sinhala and Tamil.
Browse every Codipock tool
Developer
- JWT Decoder — Decode JSON Web Tokens locally and inspect headers, payloads and claims.
- JSON Compare & Formatter — Compare JSON side by side, find value changes, validate, format and convert it.
- Regex Tester — Test expressions live with matches, groups and replacements highlighted.
- Text & String Converters — Encode Base64 and URLs or switch text between common naming cases.
- Hash Generator — Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes in your browser.
- UUID/GUID Generator — Create cryptographically secure UUID v4 identifiers in batches.
- CSV Viewer & Converter — Inspect CSV data in a table and convert between CSV and JSON.
- Timestamp & Cron Builder — Convert Unix timestamps and build cron schedules with previews.
- Password & Secret Generator — Create secure passwords, passphrases and application secrets.
Finance
- Loan Payment and Amortization Calculator — Calculate the monthly payment for a housing, vehicle leasing or personal loan, or work backwards from the monthly amount you can afford to see how much you can borrow, with a full amortization schedule.
- Compound Interest Calculator — Model investment growth with contributions and compound interest.
- Tip Calculator & Bill Splitter — Calculate a tip and divide a bill fairly between any group size.
- Sri Lanka Vehicle Leasing & Finance Calculator — Apply the current CBSL vehicle LTV limit, compare 3, 5 and 7 year terms, and normalize up to five user-entered leasing, loan or hire-purchase quotes by monthly cash out, total cost and effective annual cost.
Sri Lanka
- Loan Payment and Amortization Calculator — Calculate the monthly payment for a housing, vehicle leasing or personal loan, or work backwards from the monthly amount you can afford to see how much you can borrow, with a full amortization schedule.
- Sri Lanka NIC Decoder and Converter — Decode old and new Sri Lankan NIC numbers to find the date of birth, gender and age, and convert between NIC formats.
- Sri Lanka APIT Salary Tax Calculator — Estimate Sri Lankan APIT salary tax, EPF, ETF and take-home pay with a clear monthly or annual calculation breakdown.
- Sri Lanka Vehicle Import Duty Estimator — Plan a Sri Lankan vehicle import with an indicative breakdown of customs duty, excise duty, luxury tax, VAT and total landed cost.
- Sri Lanka Vehicle Leasing & Finance Calculator — Apply the current CBSL vehicle LTV limit, compare 3, 5 and 7 year terms, and normalize up to five user-entered leasing, loan or hire-purchase quotes by monthly cash out, total cost and effective annual cost.
- Sri Lanka Vehicle Revenue Licence Fee Estimator — Estimate annual Sri Lankan vehicle revenue licence fees and overdue charges using verified Gazette schedules, with provincial differences and limitations shown clearly.
- Sri Lanka CEB and LECO Electricity Bill Calculator — Estimate a Sri Lankan domestic electricity bill using CEB and LECO tariff blocks, fixed charges, taxes and a full bill breakdown.
- Sri Lanka NWSDB Water Bill Calculator — Estimate a Sri Lankan domestic water bill using NWSDB usage blocks, service charges, taxes and the applicable household category.
- Sri Lanka Fuel Trip Cost Calculator — Calculate fuel use and cost for a one-way or return trip in Sri Lanka using distance, fuel economy, fuel type and current price.
- Sri Lanka Postal Code Finder — Find Sri Lankan postal codes by town, district or postcode across all 25 districts with fast searchable location results.
- Sri Lanka Bank SWIFT Code Finder — Find Sri Lankan bank SWIFT, BIC and routing details by bank or branch for international transfers and account forms.
- Sinhala Unicode to FM-Abhaya Font Converter — Convert Sinhala Unicode text to FM-Abhaya legacy font encoding and convert compatible legacy text back to Unicode in your browser.
- Singlish to Sinhala and Tamil Transliterator — Type naturally with Latin letters and convert Singlish text into readable Sinhala or Tamil Unicode with live suggestions.
- Sri Lanka EPF, ETF and Gratuity Calculator — Calculate monthly employee and employer EPF and ETF contributions, project fund growth and estimate statutory gratuity in Sri Lanka.
- Live Exchange Rates for Sri Lanka — Check indicative live exchange rates between the Sri Lankan rupee and major currencies, with quick conversions and recent trends.
- Sri Lanka Gratuity Calculator — Estimate statutory gratuity from the last-drawn wage and completed service, with employer and service eligibility checks.
- Sri Lanka Bonus and Lump-Sum APIT Calculator — Estimate Sri Lankan APIT on bonuses, arrears and lump-sum employment payments using the IRD EGAR calculation method.
- Sri Lanka Foreign Employment Income Tax Calculator — Estimate Sri Lankan tax and instalments for qualifying foreign-employer income using the applicable Table 08 method.
- Sri Lanka Property Stamp Duty Estimator — Explore a common Sri Lankan property stamp-duty scenario and total buyer costs, then verify the applicable provincial rules.
- Sri Lanka Fixed Deposit and AIT Calculator — Calculate fixed-deposit interest, AIT deduction, monthly or maturity payouts, final value and estimated real return in Sri Lanka.
- Sri Lanka Solar Savings and Payback Calculator — Estimate rooftop solar generation, electricity-bill savings, export income, maintenance costs and investment payback in Sri Lanka.
- Sri Lanka Passport and Visa Photo Maker — Crop and export Sri Lankan passport and visa photos locally with 35×45 mm presets, custom sizes and a print-ready sheet.
- Sri Lanka GPA and Degree Class Planner — Calculate a credit-weighted GPA, test future grade scenarios and plan the results needed for a target Sri Lankan degree class.
Fitness
- Fitness Toolkit — Start here: enter fitness details once, see a live snapshot, and move between calculators.
- BMI & Body Metrics Calculator — Check adult BMI, reference weight and body-composition context without false precision.
- BMR Calculator — Estimate calories burned at rest with Mifflin and optional body-fat comparison.
- TDEE & Calorie Goal Planner — Estimate daily calorie needs, build a guarded cutting plan, and see macros and hydration.
- Adaptive TDEE Calculator — Refine maintenance calories from your real weight trend and logged intake.
- One Rep Max Calculator — Estimate 1RM as a range, explore training loads, and calculate plates per side.
- Waist-to-Height Ratio Calculator — Check a global waist-to-height reference with optional South Asian waist context.
- Protein & Macro Calculator — Turn a known calorie target into practical protein, carbohydrate and fat starting amounts.
- Barbell Plate Calculator — Load a target in kilograms or pounds using your available plate inventory.
Lifestyle
- Unit Converter — Convert length, weight, temperature, area, volume and more.
Documents
- QR Code Generator — Create QR codes for links, Wi-Fi, contacts, email and plain text.
- Invoice & Quotation Generator — Build professional invoices and quotations and export them to PDF.
- Sri Lanka Salary Slip and Employer Cost Generator — Create and print a Sri Lankan salary slip with APIT, EPF, ETF, overtime, deductions and a clear employer-cost summary.
- Image Compressor & Resizer — Batch compress, resize and convert images with previews and ZIP download.
- PDF Application Toolkit — Combine PDFs and images, organize pages, export images and compress privately.
Global Utilities
- Global Weather Forecast — Check current conditions and a weekly forecast for cities worldwide.
- IP & Network Locator — See your public IP, ISP, ASN and approximate network location.
- DNS Lookup Tool — Check A, AAAA, MX, TXT, NS and other live DNS records for any domain.
- Global Public Holidays — Find national holidays and long weekends for over 100 countries.
- GitHub Profile Viewer — Generate a shareable profile overview for any GitHub username.