Free OnlineTools
Browse 10 categories of free tools — AI calculators, data converters, image optimizers, text tools, business utilities, and name generators.
GPT-5.4 Token & API Cost Calculator
Calculate API costs for all GPT-5.4 models with current 2026 pricing.
Claude 4.7 API Cost Estimator
Estimate costs for Claude 4.7 Opus, Sonnet, and Haiku models.
Gemini 3.1 Deep Think Token Calculator
Calculate costs for Gemini 3.1 Pro, Flash, and Nano models.
Llama 4 Self-Hosting Cost Estimator
Estimate GPU and cloud costs for self-hosting Llama 4 models.
RAG vs Fine-Tuning Cost Comparison Calculator
Compare RAG and fine-tuning costs to find the optimal approach for your project.
AI Token Counter & API Cost Calculator
Count tokens, words, and characters across all major LLMs and estimate API costs in real time.
JSON to Shopify Product Schema Converter
Convert JSON product data to Shopify-compatible schema format.
CSV to Airtable Schema Mapper
Map CSV data to Airtable fields with automatic type detection.
Markdown to Notion-Ready Table Converter
Convert Markdown tables into Notion-ready format instantly.
SQL Query to Python DataFrame Script
Generate Python pandas scripts from SQL queries.
CSV to SQL INSERT Converter
Generate SQL CREATE TABLE and INSERT statements from CSV data.
Robots.txt Generator for E-commerce Sites
Generate production-ready robots.txt files tailored for e-commerce platforms.
SaaS Burn Rate Calculator
Calculate burn rate, runway, and time to profitability for SaaS startups.
Meeting Cost Calculator
See the real dollar cost of meetings based on attendee salaries.
Cloud Storage Cost Estimator
Compare storage costs across AWS, Azure, and GCP.
Freelance Project Fee Calculator
Calculate optimal freelance rates with taxes and overhead included.
Profit Margin Calculator
Find gross profit, margin %, and markup from revenue and direct cost.
Zakat Calculator for Crypto & Stock Assets
Calculate Zakat on crypto and stock holdings with current Nisab values.
Age Calculator
Exact age from your birth date.
BMI Calculator
BMI and category from height and weight.
Calorie Calculator (TDEE)
Maintenance calories (TDEE) estimate.
Body Fat Calculator
Tape-measure body fat estimate (Navy).
BMR Calculator
Basal metabolic rate in kcal/day.
Ideal Weight Calculator
Devine ideal weight from height.
PNG to WebP Converter
Convert PNG to WebP with up to 80% file size reduction.
JPG to WebP Converter
Convert JPG to WebP for smaller file sizes with same quality.
PNG to AVIF Converter
Convert PNG to AVIF for next-generation compression.
JPG to AVIF Converter
Convert JPG to AVIF for superior compression and quality.
WebP to PNG Converter
Convert WebP images to universally compatible PNG format.
WebP to JPG Converter
Convert WebP images to widely supported JPG format instantly.
SaaS Startup Name Generator
Generate brandable SaaS startup names with domain availability.
AI Agent Name Generator
Generate creative names for AI agents, assistants, and chatbots.
TikTok Handle & Nickname Finder
Find creative TikTok usernames based on your niche or interests.
Twitch Gaming Alias Creator
Create memorable gaming aliases for Twitch streaming.
QR Code Generator for Wi-Fi & Events
Generate QR codes for Wi-Fi, events, URLs, and contacts.
Lucky Wheel Spinner
Spin the wheel for random decisions, giveaway winners, and more.
Pomodoro Timer with Task Checklist
Focus timer with built-in task management and session tracking.
Mind Map Maker (Text to Mind Map)
Convert text outlines into interactive visual mind maps.
Sketch Board (Online Whiteboard)
Freeform drawing and brainstorming on an infinite canvas.
Letter Case Converter
Switch between lowercase, UPPERCASE, Title Case, and sentence case — including simple-to-capital and capital-to-simple.
Whitespace Remover
Strip blank lines and/or empty paragraph gaps; optional settings for what to remove.
Text Formatting Remover
Strip common Markdown markers and HTML tags for plain, copy-friendly text.
Put Words in Alphabetical Order
Sort all words in your text alphabetically (locale-aware).
Word Frequency Counter
See each word and how many times it appears, sorted by frequency.
Text Replacer
Replace every occurrence of a search string with your replacement text.
Emoji Keyboard
Virtual emoji keyboard for typing and copying text in your browser.
Arabic Keyboard
Virtual arabic keyboard for typing and copying text in your browser.
Chinese Keyboard
Virtual chinese keyboard for typing and copying text in your browser.
Japanese Keyboard
Virtual japanese keyboard for typing and copying text in your browser.
Korean Keyboard
Virtual korean keyboard for typing and copying text in your browser.
Russian Keyboard
Virtual russian keyboard for typing and copying text in your browser.
HTML Prettify / Minify
Beautify or compress HTML markup locally in your browser.
JSON Prettify / Minify
Pretty-print or minify JSON instantly.
JavaScript Prettify / Minify
Prettify JS with Prettier or minify with Terser.
CSS Prettify / Minify
Beautify or compact CSS locally.
XML Prettify / Minify
Indent or compress XML with DOM validation.
JSON Escape / Unescape / Validate
Escape, unescape, or validate JSON without sending data anywhere.