SmartPlusLab
Tools
Online tools with clear inputs, predictable outputs, and honest privacy and limit notes.
-
Image Filters
Apply artistic filters such as blur, sharpen, contour, smooth, and emboss to your images online.
Image Tools -
Image Grayscale
Convert color photos and graphics to grayscale using luminosity or channel-averaging methods.
Image Tools -
Image Metadata Viewer
Inspect image formats, dimensions, color modes, and embedded EXIF metadata from base64 image data.
Image Tools -
Image Placeholder Generator
Generate custom SVG placeholder graphics and inline image data with adjustable dimensions, label text, and color schemes.
Image Tools -
Image Rotator
Rotate images by any angle with configurable canvas expansion and fill color options.
Image Tools -
Image to Base64 Converter
Convert image data into base64 strings and formatted data URIs for HTML, CSS, or API integration.
Image Tools -
Image Watermark
Add custom text watermarks to images with configurable font size, opacity, and positioning.
Image Tools -
Inflation Calculator
Calculate future nominal value and diminished purchasing power over time based on custom inflation rates.
Finance -
Instagram CSS Filters
Generate CSS filter property definitions for popular Instagram-style visual presets.
Social & Media -
IP Address Info
Analyze IPv4 and IPv6 addresses to inspect IP versions, scope classifications, octets, and alternative format representations.
Network Tools -
IP Subnet Calculator
Calculate network addresses, broadcast addresses, subnet masks, usable host ranges, and address counts for IPv4 and IPv6 networks.
Network Tools -
JPG to WebP Converter
Convert JPEG and JPG images to WebP format online with adjustable compression quality settings.
File Converters -
JavaScript Formatter
Format and beautify JavaScript code with customizable indentation or minify scripts to remove extra whitespace and comments.
Developer Tools -
JSON Beautifier
Format and pretty-print JSON text with custom indentation levels and optional key sorting.
Developer Tools -
JSON Diff
Compare two JSON data structures to identify differences in keys, values, and array elements.
Developer Tools -
JSON Minifier
Minify JSON data online by stripping out whitespace, line breaks, and unnecessary indentation while preserving structure.
Developer Tools -
JSON Path Tester
Test JSON path expressions against JSON data to query nested object properties, wildcards, and array indices.
Developer Tools -
JSON Schema Validator
Validate JSON text against a JSON Schema document and inspect structural mismatches, missing required properties, and type errors.
Developer Tools -
JSON to Code Generator
Convert JSON text into TypeScript interfaces or Python dataclasses online with custom root type names and nested type inference.
Developer Tools -
JSON to CSV Converter
Convert JSON objects or arrays of records into structured CSV text with customizable delimiter support.
File Converters -
JSON to Table Converter
Convert JSON arrays into clean HTML or Markdown tables with custom columns and escaped markup.
File Converters -
JSON to XML Converter
Convert JSON data into clean XML documents online with customizable root tags, element formatting, and automatic character escaping.
File Converters -
JSON to YAML Converter
Convert JSON text into formatted YAML with custom indentation and optional key sorting.
File Converters -
JWT Decoder
Decode and inspect three-part JSON Web Tokens with optional secret-based signature verification.
Crypto & Security -
JWT Generator
Generate signed JSON Web Tokens (JWT) using HMAC-SHA256 signing with custom or default JSON payloads.
Crypto & Security -
Keyword Density Checker
Analyze keyword density, total word count, and top word frequencies in your text.
SEO & Web -
Length Converter
Convert distance and length measurements across metric, US customary, and microscale units with high precision.
Converters -
Loan Calculator
Calculate fixed monthly loan payments, total interest costs, and full amortization schedules from loan amount, interest rate, and term.
Finance -
Logarithm Calculator
Calculate standard logarithms, natural logarithms, base-2 logarithms, and antilogarithms with custom bases.
Math & Numbers -
Advanced Lorem Ipsum Generator
Generate customized placeholder text using classic Latin, hipster, or tech startup styles by word, sentence, or paragraph count.
Text Tools