Popular tools
View all toolsPassword Generator
Generate strong random passwords with length, character set, ambiguity, copy, and strength controls.
liveImage to PDF
Combine JPG, PNG, and WebP images into a downloadable PDF with sizing, margins, and ordering.
liveMerge PDF
Merge multiple PDF files locally, reorder them, choose page ranges, and download one combined PDF.
liveUUID / GUID Generator
Generate UUID values in bulk with v4 or timestamp-style mode, casing, hyphens, braces, copy, and export.
liveText Diff Checker
Compare two text blocks with line and inline highlights, counts, swap, clear, and paste workflows.
liveCompress PDF
Optimize PDF structure locally with compression level choices, original size, estimate, and download.
liveSplit PDF
Split a PDF into every page, every N pages, or a selected page range and download a ZIP.
livePDF to JPG
Render PDF pages to JPG images locally and download one image or a ZIP for multi-page files.
liveColor Picker and Converter
Pick colors, convert HEX, RGB, HSL, and HSV, copy values, and save a small local palette.
liveQR Code Generator
Generate QR codes for URLs, text, contact details, and campaign links.
liveJSON Formatter
Format and validate JSON in the browser before using other JSON tools.
liveTool workflows
Step-by-step chains that combine Toolumina utilities for documents, images, SEO, JSON, security, and business tasks.
Turn photos, scans, and separate PDFs into one clean, smaller document that is ready to send or archive.
Web Image Publishing5 stepsPrepare phone photos, product images, and screenshots for fast web pages and clean social previews.
SEO Content Launch5 stepsMove from draft copy to a publishable URL, search snippet, campaign link, and QR code.
API JSON Debug5 stepsClean, compare, validate, and transform API data while keeping payloads local.
Explore by category
The same category system used across navigation, search, sitemap, and the full tool index.
Marketing
Campaign URL builders, search preview checks, receipt tools, and other lightweight utilities for practical marketing workflows.
Text
Clean, count, compare, extract, and format text in the browser for writing, editing, and content operations.
Text Diff Checker
Compare two text blocks with line and inline highlights, counts, swap, clear, and paste workflows.
Slug Generator
Turn titles into clean SEO-friendly URL slugs with separators, stop words, and limits.
Word and Character Counter
Count words, characters, sentences, paragraphs, keyword density, readability, reading time, and character distribution.
Image
Resize, compress, crop, convert, color-adjust, watermark, pixelate, and prepare visual assets locally in your browser for publishing and sharing.
Image Cropper
Crop images locally with preset ratios, rotation, flipping, quality, format, preview, and download.
Color Picker and Converter
Pick colors, convert HEX, RGB, HSL, and HSV, copy values, and save a small local palette.
Image Compressor
Compress JPG, PNG, and WebP images locally with quality, format, preview, and download.
Image Resizer
Resize JPG, PNG, and WebP images by width, height, percentage, presets, and fit mode.
Merge, split, compress, convert, and create PDF files locally in your browser.
Image to PDF
Combine JPG, PNG, and WebP images into a downloadable PDF with sizing, margins, and ordering.
Merge PDF
Merge multiple PDF files locally, reorder them, choose page ranges, and download one combined PDF.
Compress PDF
Optimize PDF structure locally with compression level choices, original size, estimate, and download.
Split PDF
Split a PDF into every page, every N pages, or a selected page range and download a ZIP.
Generator
Generate passwords, UUIDs, placeholder text, random numbers, codes, QR codes, and other useful values locally.
Developer
JSON, timestamp, regex, keyboard, mouse, data conversion, and other small utilities for builders and technical teams.
JSON Compare and Diff Tool
Compare two JSON snippets and review added, removed, changed, and type-changed fields.
JSON Schema Validator
Validate JSON against a local schema and locate missing fields, type errors, and rule failures.
JSON Formatter
Format and validate JSON in the browser before using other JSON tools.
Security
Local-first tools for hashes, keys, JWTs, signing, encoders, DNS lookups, and defensive security workflows.
URL Defang / Refang Tool
Safely defang or refang URLs, domains, and IP indicators for security analysis.
IOC Extractor
Extract URLs, domains, IP addresses, and hashes from security reports, logs, and pasted text.
SSL Certificate Decoder
Parse PEM SSL certificates locally and inspect subject, issuer, SAN, dates, and fingerprints.
CSR Decoder
Decode certificate signing requests locally and review CN, SAN, algorithms, and key details.
Latest tools
29 tools trackedPassword Generator
Generate strong random passwords with length, character set, ambiguity, copy, and strength controls.
Image to PDF
Combine JPG, PNG, and WebP images into a downloadable PDF with sizing, margins, and ordering.
Image Cropper
Crop images locally with preset ratios, rotation, flipping, quality, format, preview, and download.
Color Picker and Converter
Pick colors, convert HEX, RGB, HSL, and HSV, copy values, and save a small local palette.
Merge PDF
Merge multiple PDF files locally, reorder them, choose page ranges, and download one combined PDF.
Text Diff Checker
Compare two text blocks with line and inline highlights, counts, swap, clear, and paste workflows.
UUID / GUID Generator
Generate UUID values in bulk with v4 or timestamp-style mode, casing, hyphens, braces, copy, and export.
Compress PDF
Optimize PDF structure locally with compression level choices, original size, estimate, and download.