Free Online AI & Crypto Tools

Zelve AI Chat

Chat with AI models for free — Nemotron, Gemma, and GPT-OSS. No API key needed.

AI to Human Text

Convert AI-generated text to sound natural and human-like with 60+ transformations.

Color Palette from Image

Upload an image and extract a beautiful color palette instantly.

Gradient Generator

Create stunning CSS gradients with a visual editor.

Image to Base64

Convert any image to a Base64 data URL for embedding in code.

Image to Prompt

Get a detailed AI prompt for Midjourney, DALL-E, Stable Diffusion.

QR Code Generator

Generate scannable QR codes from any text or URL.

Developer Tools

Essential utilities for building software

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Password Generator

Generate cryptographically secure random passwords.

JSON Formatter

Format, validate, and minify JSON data with error detection.

Word Counter

Count words, characters, sentences with reading time.

Text to URL Slug

Convert text into a clean, SEO-friendly URL slug.

Crypto Tools

On-chain data, converters, and utilities

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Crypto Price Calculator

Live prices for 10+ cryptocurrencies with instant conversion.

Gas Fee Estimator

Live gas prices for Ethereum, Polygon, and BNB Chain.

Wallet Balance Checker

Check the balance of any Solana, Ethereum, or Bitcoin wallet.

Address Validator

Validate BTC, ETH, and SOL wallet addresses.

Crypto Unit Converter

Convert between BTC/sats, ETH/wei/Gwei, SOL/lamports.

BIP39 Mnemonic Generator

Generate 12 or 24-word seed phrases for development.