SmartPlusLab
Tools
Online tools with clear inputs, predictable outputs, and honest privacy and limit notes.
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Image Resizer
Resize images online to target pixel dimensions with optional aspect ratio preservation.
Image Tools -
JSON Formatter
Format, beautify, validate, and minify JSON data with customizable indentation and key sorting.
Developer Tools -
Password Generator
Generate strong, random passwords with customizable length, character types, and quantity. Create secure passwords for your accounts instantly.
Generators -
PDF Merger
Merge two or more PDF documents into a single file with preserved page order.
PDF Tools -
Percentage Calculator
Calculate percentages, determine what percentage one number is of another, or find the percentage change between two values.
Math & Numbers -
QR Code Generator
Generate scannable PNG QR codes from URLs or plain text with customizable colors, sizing, and error correction levels.
Generators -
Text Case Converter
Convert text across upper, lower, title, sentence, camel, snake, and kebab case styles online.
Text Tools -
UUID Generator
Generate standard 36-character v1, v4, or v5 UUID strings online with batch count and uppercase formatting options.
Generators -
Age Calculator
Calculate a person's age from their date of birth as of today or any other date.
Time & Date -
Angle Converter
Convert angle values between degrees, radians, gradians, arcminutes, arcseconds, and turns.
Converters -
Area Converter
Convert area measurements between square meters, square feet, acres, hectares, and other imperial and metric area units.
Converters -
ASCII Art Generator
Convert plain text into stylized multi-line ASCII art banners using fonts such as standard and slant.
Text Tools -
Aspect Ratio Calculator
Calculate reduced aspect ratios, decimal ratios, layout orientation, and standard reference dimensions from width and height values.
Image Tools -
AVIF to JPG Converter
Convert AVIF image files to standard JPEG format with customizable compression quality.
File Converters -
AVIF to PNG Converter
Convert AVIF image files to PNG format online.
File Converters -
Background Remover
Remove image backgrounds online and export transparent PNG graphics using automated detection and adjustable color tolerance.
Image Tools -
Barcode Generator
Generate standard linear barcodes in formats such as Code 128, UPC-A, and EAN-13 as base64 PNG images with custom sizing and text visibility.
Generators -
Base32 Encoder/Decoder
Encode plain text to Base32 strings or decode Base32 data back to readable text online.
Developer Tools -
Base64 Converter
Encode text to Base64 and decode Base64 strings back to text with support for standard, URL-safe, and custom 64-character alphabets.
Developer Tools -
Base64 Decoder
Decode Base64 strings back into readable plain text with UTF-8 character support.
Developer Tools -
Base64 Encode
Convert any text to Base64 encoding instantly. Free online tool for developers, data transfer, and web applications.
Developer Tools -
Base64 to Image Converter
Convert Base64 encoded strings and data URIs back into viewable and downloadable images.
Image Tools -
Bcrypt Hash Generator
Generate salted bcrypt password hashes with configurable cost rounds for development and testing.
Crypto & Security -
Binary / Hex Text Converter
Convert plain text into binary and hexadecimal values, or decode space-separated binary and hex sequences back into text.
Text Tools -
Bio Generator
Generate social media bio descriptions with customizable styles and quantity options.
Social & Media -
Bitwise Calculator
Calculate bitwise AND, OR, XOR, NOT, NAND, NOR, and bit shift operations on integer values with full binary representations.
Math & Numbers -
BMI Calculator
Calculate your Body Mass Index (BMI) from height and weight inputs with standard category classification.
Math & Numbers -
Braille Translator
Convert standard text to Braille Unicode characters or decode mapped Braille back to text.
Text Tools -
Byte Converter
Convert digital storage quantities across binary units, IEC prefixes, and SI decimal byte units.
Converters -
Caesar Cipher
Encode and decode text with a classic Caesar shift cipher, choosing custom shifts and direction.
Crypto & Security