Top free tools, voted by the community

Sri Lanka A/L Z-Score Calculator

Education · Compute your Sri Lankan G.C.E. Advanced Level Z-score from three subje

Sri Lanka NIC Decoder

Utility · Decode any Sri Lankan NIC (old 9-digit + V/X or new 12-digit) to its d

AI Voice Generator

AI · Turn text into realistic AI speech and download the MP3, free, no sign

Sri Lanka Tax Calculator

Finance · Calculate your monthly and annual personal income tax (APIT) for Sri L

A/L Combination Validator

Education · Pick any three A/L subjects and see which UGC stream the combination u

University Cutoff

Education · Enter your A/L Z-score, stream and district to see which Sri Lankan st

AI Audio Transcriber

AI · Upload an audio or video file and get a timestamped transcript in 99 l

No-Pay Leave Calculator

Finance · Calculate the exact salary cut for no-pay (unpaid) leave days in Sri L

Text to Speech

Text · Convert text to spoken audio using your browser's built-in voices. Adj

Case Converter

Text · Convert text between UPPERCASE, lowercase, Title Case, Sentence case,

EXIF Metadata Viewer

Image · View all EXIF and metadata of any photo or video, camera, exposure, ca

Grade 1 Age Check

Education · Enter your child's date of birth and instantly see which year they're

JSON to TypeScript

Utility · Paste any JSON and instantly get clean TypeScript interfaces or type a

LaTeX Editor

Developer · Write LaTeX in the browser and see the compiled PDF as you type. Do no

Licence Eligibility

Travel · Find out which of Sri Lanka's 13 driving licence classes you can apply

Number Plate Decoder

Travel · Decode any Sri Lankan number plate into its province, vehicle class (c

Random Name Generator

Utility · Generate random first and last names filtered by origin (English, Sinh

Sri Lanka EPF Calculator

Finance · Project your EPF and ETF balance at retirement using statutory contrib

.gitignore Generator

Developer · Generate a clean, deduplicated .gitignore from GitHub's official templ

.htaccess Generator

Developer · Build a valid Apache .htaccess file from toggles, force HTTPS, www/non

.lk Domain Price

Utility · Find the exact official LK Domain Registry price to register or renew

1RM Calculator

Utility · Estimate your one-rep max (1RM) from a weight × reps set using four pe

3D Printer Import Tax

Finance · Calculate the landed cost and every import levy, PAL, VAT and SSCL (Cu

A/B Test Significance

AI · Check whether the difference between your control and variant is stati

A/L Stream Eligibility Check

Education · Enter your O/L grades to check if you qualify to sit GCE A/L and which

Age Calculator

Utility · Calculate your exact age in years, months, days, hours, and minutes. I

Airport Tax Calculator

Travel · Calculate Embarkation Levy + Passenger Service Charge for departures f

Aswesuma Benefit

Finance · Estimate the monthly and lifetime Aswesuma payment your household qual

Cohen's d Calculator

Education · Compute Cohen's d and the bias-corrected Hedges' g from means and SDs,

Countdown Timer

Utility · Live countdown to any future date and event with a year/month/day/hour

EV vs Petrol Cost Calc

Finance · Compare the running cost of an electric vehicle against a petrol car i

Image to Text (OCR)

Documents · Extract text from images, screenshots, and scans entirely in your brow

O/L Pass Check

Education · Enter your nine GCE O/L grades and instantly see whether you passed O/

Passport Fee

Finance · Add up the exact rupee cost for a Sri Lankan passport, Normal or One-D

Salary Calculator

Finance · Convert any salary between hourly, daily, weekly, bi-weekly, semi-mont

SL Area Code Finder

Utility · Two-way lookup for Sri Lankan landline area codes, type a city to get

SL Number Plate Year Checker

Travel · Estimate a Sri Lankan vehicle's registration year, province, and class

SL Phone Number Lookup

Utility · Validate any Sri Lankan phone number, find its network operator (Dialo

Visa-Free Finder

Travel · Look up every country a Sri Lankan ordinary passport holder can enter

A/L & O/L Grade Calculator

Education · Convert G.C.E. Advanced Level or Ordinary Level subject marks (0–100)

A/L Repeat Eligibility Check

Education · Re-sitting the GCE A/L? Answer a few questions and get a clear eligibl

A1C Calculator

Health · Convert HbA1c to estimated average blood glucose in mg/dL and mmol/L (

AAT Exemption Checker

Education · Pick the qualification you already hold, A/L passes, a UGC degree, HND

AC Size (BTU) Calculator

Utility · Find the right air conditioner size in BTU and tons for any room in Sr

ACCA & CIMA Cost Calculator

Education · Add up the total official ACCA or CIMA body fees to qualify in Sri Lan

Accountancy Cost Calculator

Education · Add up the total official body fees to qualify as an accountant in Sri

Activation Function Calc

AI · Compute the common neural-network activation functions, ReLU, Leaky Re

Adam Optimizer Calculator

Education · Compute one or more steps of the Adam optimizer from a gradient and th

Adam's Peak Season Planner

Travel · Check whether the Sri Pada pilgrimage season is open on your date, get

Adjusted Rand Index Calc

AI · Compares two clusterings (or a clustering against ground-truth labels)

Admission Marks

Education · Estimate the marks your Grade 1 government school application will sco

Agrahara Insurance Calc

Finance · Work out exactly what the Agrahara scheme (NITF) reimburses for a hosp

Agrahara Registration Guide

Finance · Step-by-step guide to register for Agrahara insurance online at nitf.l

AI Agent Cost Calculator

AI · Estimate the real per-run, daily, and monthly cost of a multi-step LLM

AI Agent Framework Compare

AI · Compare the major LLM agent-building frameworks, LangGraph, LlamaIndex

AI Agent Rules Generator

Developer · Generate a clean coding-agent instructions file from one short form, A

AI Alt-Text Generator

AI · Drop an image and get a concise, WCAG-friendly alt-text string plus tw

AI API Cost Calculator

AI · Estimate the monthly and per-request USD and LKR bill for any major LL

AI API Error Code Lookup

Developer · Decode any OpenAI, Anthropic (Claude), or Google Gemini API error code

AI API Request Builder

AI · Build a ready-to-run curl, Python and Node.js request for the OpenAI,

AI API Usage Tier Lookup

AI · Look up the OpenAI and Anthropic paid usage-tier ladders, the cumulati

AI Audio Token Cost Calc

AI · Convert an audio clip's duration (or a measured audio_tokens count) in

AI Availability by Country

AI · Pick a country and instantly see which major AI chatbots, ChatGPT, Gem

AI Avatar Video Compare

AI · Compare AI talking-avatar / spokesperson video generators, HeyGen, Syn

AI Avatar Video Cost

AI · Compare the cost of AI avatar / talking-head videos across Synthesia,

AI Bot Blocker (robots.txt)

AI · Generate ready-to-paste robots.txt rules to block AI crawlers, GPTBot,

AI Browser Compare

AI · Filterable comparison of agentic AI browsers, ChatGPT Atlas, Perplexit

AI Budget Calculator

AI · Enter a dollar budget, pick a model, and describe an average request.

AI Carbon Calculator

AI · Estimate the electricity, CO₂e, and water footprint of your ChatGPT, G

AI Chat Cost Calculator

AI · Estimate the real API cost of a multi-turn LLM chat. Because the whole

AI Chat Template Generator

AI · Wrap a system prompt and a multi-turn conversation in the exact specia

AI Chatbot Age Checker

Utility · Enter an age and country to see which AI chatbots, ChatGPT, Claude, Ge

AI Chatbot Cost Calculator

AI · Estimate the monthly API cost of a multi-turn AI chatbot across Claude

AI Chatbots in Sri Lanka

Utility · Check whether ChatGPT, Claude, Gemini, Copilot, Perplexity, Meta AI, D

AI Citation Generator

AI · Generate correctly formatted references and in-text citations for Chat

AI Code Execution Cost

AI · Compare the server-side code execution (code interpreter / sandbox con

AI Coding Assistant Compare

AI · Side-by-side comparison of the major AI coding assistants, Cursor, Git

AI Coding Assistant Cost

AI · Compare the real monthly and annual cost of GitHub Copilot, Cursor, Cl

AI Content Rights Checker

AI · Find out who owns what you generate with AI, and whether you can use o

AI Context Windows

AI · Compare the input context window of every current LLM, GPT-5, Claude,

AI Copyright Indemnity Check

AI · Find out whether your AI provider will legally defend you and pay the

AI Cost Per User

AI · Turn model token prices into LLM cost per active user, break-even subs

AI Cost Per Word

AI · Convert AI token pricing into cost per word, per page, and per article

AI Cover Letter Generator

Freelance · Generate a tailored, one-page professional cover letter for Sri Lankan

AI Credits Calculator

AI · Turn Midjourney, Runway, Suno, ElevenLabs and HeyGen credits into real

AI Data Privacy Compare

AI · Does ChatGPT, Claude, Gemini, Copilot, Meta AI, Grok, DeepSeek or Mist

AI Deep Research Compare

AI · Compare the five agentic AI deep-research modes, ChatGPT Deep Research

AI Detector Comparison

AI · Compare GPTZero, Turnitin, Originality.ai, Copyleaks, Winston AI, Quil

AI Diagram Generator

AI · Describe your system, database or process in plain English and an AI a

AI Embedding Compare

AI · Compare popular text-embedding models (OpenAI, Cohere, Voyage, Google,

AI Embedding Generator

AI · Turn any text into its 384-dimension embedding vector with all-MiniLM-

AI Entity Recognizer

AI · Extract people, organisations, locations, and proper nouns from any En

AI Face Blur

AI · Detect and blur, pixelate, or black out every face in a photo, entirel

AI Feature Support Matrix

AI · A caniuse-style capability matrix for LLM APIs: filter which productio

AI File Upload Limits

AI · Compare the exact file-upload limits of every major AI assistant, max

AI Flashcard Generator

AI · Turn pasted notes or any passage into study flashcards (Q&A, term–defi

AI Free Tier Compare

AI · Compare the free tier of every major LLM API, Gemini, Groq, Mistral, O

AI GPU Comparison

AI · Compare the NVIDIA GPUs people use to run and fine-tune LLMs (RTX 3060

AI Grammar Checker

AI · Paste any English paragraph and get a corrected version side-by-side w

AI Hallucination Rates

AI · Compare how often leading LLMs hallucinate using the published Vectara