SmartPlusLab
Tools
Online tools with clear inputs, predictable outputs, and honest privacy and limit notes.
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Gradient Generator
Generate linear and radial CSS gradient code with custom colors and angle settings.
Color Tools -
GraphQL Formatter
Format, beautify, and inspect GraphQL queries and schema definitions online.
Developer Tools -
Hash Generator
Generate cryptographic hash digests including MD5, SHA-1, SHA-256, SHA-512, SHA-3, and BLAKE2 in hexadecimal format from any text.
Crypto & Security -
Hashtag Generator
Generate relevant hashtag suggestions directly from your post text, ranked by term frequency and formatted for social media.
Social & Media -
HEIC to JPG Converter
Convert HEIC and HEIF photos to standard JPEG image format with customizable quality settings.
File Converters -
HEIC to PNG Converter
Convert your HEIC and HEIF photos into standard PNG image files directly in your web browser.
File Converters -
Hex Color Picker
Convert hexadecimal color codes into RGB and HSL formats with color channel breakdowns and brightness classification.
Color Tools -
HEX to RGB Converter
Convert hexadecimal color codes to numeric RGB channels, CSS formats, and percentage values.
Color Tools -
HMAC Generator
Generate keyed-hash message authentication codes (HMAC) using SHA-256 or SHA-512 algorithms online.
Crypto & Security -
.htaccess Generator
Create Apache .htaccess configuration text with redirect rules, cache-expiration directives, security headers, and custom rules. Paste the generated output into your server file.
SEO & Web -
HTML Entity Decoder
Decode HTML entities and numeric character references into regular text.
Developer Tools -
HTML Entity Encoder
Encode special characters such as angle brackets and ampersands into standard HTML entities.
Developer Tools -
HTML Entities
Encode special characters into HTML entities or decode entity codes back into readable text.
Developer Tools -
HTML Formatter
Format, indent, or compact HTML markup for improved readability and clean code structure.
Developer Tools -
HTML to Markdown Converter
Convert HTML markup into clean Markdown text with automatic tag conversion, entity decoding, and whitespace normalization.
File Converters -
HTML to Plain Text
Strip HTML tags and extract clean plain text with entity decoding and link preservation
File Converters -
HTML Viewer
View, inspect, and format HTML code with escaped source output, text representations, character counts, and line segment analysis.
Developer Tools -
HTTP Headers Info
Parse and inspect HTTP request and response headers with counts, standard definitions, and malformed line detection.
Network Tools -
HTTP Status Code Reference
Look up HTTP status codes and browse response categories with clear definitions and standard descriptions.
Network Tools -
IBAN Generator
Generate mock IBAN numbers for software testing and UI form validation across supported country formats.
Generators -
Image to ASCII Converter
Convert images into grayscale ASCII art text with customizable character width and optional brightness inversion.
Image Tools -
Image Blur
Apply an adjustable Gaussian blur effect to your images with custom radius settings and preserved dimensions.
Image Tools -
Image Border
Add custom-colored borders to your images with adjustable width and hex colors.
Image Tools -
Image Brightness
Adjust image brightness online by setting a custom factor between 0.0 and 3.0 to brighten or darken your pictures.
Image Tools -
Image Collage
Combine two to nine images into a customizable grid collage with adjustable columns, padding, and background color.
Image Tools -
Image Color Picker
Extract dominant colors and generate a color palette with hex codes, RGB values, and percentages from any uploaded image.
Image Tools -
Image Compressor
Compress static JPEG, PNG, or WebP images online by adjusting quality levels and output formats.
Image Tools -
Image Converter
Convert images between formats including PNG, JPEG, WEBP, GIF, BMP, and TIFF with custom quality settings.
File Converters -
Image Cropper
Crop images to specific rectangular coordinates with numeric boundary controls.
Image Tools -
Favicon Generator
Generate HTML favicon code and SVG markup using custom emoji and colors for your website.
SEO & Web