Popular Tools
Most used calculation and optimization utilities by our users.
Net Salary Calculator
Estimate monthly net pay after Social Security contributions and regional IRPF.
Open tool →Income Tax (IRPF) Calculator
Estimate annual personal income tax liability across state and regional brackets.
Open tool →Technical SEO Auditor
Free technical audit for any URL: HTTP status codes, redirects, canonicals, robots.txt, sitemaps, JSON-LD schema, and compression.
Open tool →WebP Image Compressor
Compress JPG, PNG, and WebP images directly in your browser reducing file size up to 80%.
Open tool →Unix Epoch Timestamp Converter
Convert Unix timestamps to human dates and vice versa with GMT/local time.
Open tool →Final Settlement Calculator
Calculate final settlement with pending salary, extra payments and unused vacations.
Open tool →Latest Added Tools
Newest utilities integrated into the iDiUtils suite.
Canonical Tag Consistency
Analyze canonical URLs, status codes, indexability and cross-domain redirects.
Open tool →Render-Blocking Resource Detector
Identify render-blocking CSS/JS files impacting First Contentful Paint and LCP.
Open tool →EU Intra-Community Invoice Calculator
Calculate reverse charge VAT and VIES rules for EU B2B intra-community invoices.
Open tool →CRON Expression Generator
Generate and translate CRON schedule expressions with upcoming execution dates.
Open tool →Volumetric Weight Calculator
Calculate chargeable parcel weight for DHL, FedEx, UPS and SEUR logistics.
Open tool →PrestaShop CSV Validator
Validate PrestaShop catalog import CSV files and identify format errors before uploading.
Open tool →Performance & WPO (Web Performance Optimization)
Minimize load times, reduce resource sizes and optimize static code to boost your Google PageSpeed score.
Static WPO Compressor
Minify static CSS and JavaScript files using optimization techniques designed to preserve their original behavior.
Open tool →Critical CSS Generator
Extract above-the-fold CSS from any URL and load it inline in your page head for instant rendering.
Open tool →Font Optimizer
Reduce the weight of your icon fonts (Font Awesome, Elementor) by purging and subsetting from your Sitemap.xml.
Open tool →Lazy Loading Generator
Generate lazy loading code for next-gen images, responsive Picture elements and map/video iframes.
Open tool →Preconnect Generator
Create preconnect and dns-prefetch hints to speed up critical external connections.
Open tool →WPO Full Optimizer
Recommended optimization! Purge unused CSS, minify JavaScript and perform icon font subsetting in a single process.
Open tool →SEO & Digital Marketing
Adjust your crawl budget, edit structured data, set up lossless redirects and generate campaign links.
Technical SEO Auditor
Free technical audit for any URL: HTTP status codes, redirects, canonicals, robots.txt, sitemaps, JSON-LD schema, and compression.
Open tool →Website Cookie Analyzer
Scan any web URL to auto-fill your cookie consent table: Domain, Cookie Name, 1st/3rd Party, Session/Persistent, Retention Period, and Purpose.
Open tool →AI Bots Checker
Audit whether your site allows or blocks AI crawlers (GPTBot, Claude-SearchBot, PerplexityBot) in your robots.txt file.
Open tool →PrestaShop CSV Validator
Validate PrestaShop catalog import CSV files and identify format errors before uploading.
Open tool →Email Health & DNS Checker
Free email authentication lookup: SPF records, DKIM keys, DMARC policies, and BIMI DNS records.
Open tool →Schema.org Generator
Build structured JSON-LD data for rich results (Organization, Product, FAQ, Breadcrumb...).
Open tool →Design & Visual Conversion
Optimize and convert graphic formats, package PWA favicons, calculate aspect ratios and translate color codes.
WebP Image Compressor
Compress JPG, PNG, and WebP images directly in your browser reducing file size up to 80%.
Open tool →SVG Optimizer
Clean unnecessary metadata from your vector files generated by Illustrator, Figma or Sketch.
Open tool →PNG, JPG & WebP Converter
Convert images between PNG, JPG and WebP format directly in your browser.
Open tool →Favicon & App Icon Generator
Create favicons, ICO files and web app manifests for iOS/Android.
Open tool →Image Palette Extractor
Extract dominant color palette and HEX/RGB codes from any image.
Open tool →EXIF Metadata Cleaner
Remove EXIF, GPS location and camera data from photos for privacy.
Open tool →Code & Text Utilities
Format scripts, analyze word density and stopwords, encode safe HTML entities or clean SQL databases.
JSON Formatter & Validator
Format, validate, and beautify your JSON code instantly with smart syntax error detection.
Open tool →SQL Formatter
Format, beautify and minify MySQL, PostgreSQL and SQLite database queries.
Open tool →Hash Generator
Calculate MD5, SHA-1, SHA-256 and SHA-512 cryptographic hashes.
Open tool →UUID Generator
Generate UUID v4 random and UUID v7 time-ordered unique identifiers.
Open tool →Markdown to HTML
Convert Markdown text to clean HTML code with live real-time preview.
Open tool →Password Generator
Generate strong, random, cryptographically secure passwords with customizable rules.
Open tool →Finance & Business Calculators
Calculators for salaries, taxes, mortgages, freelance invoices, and business finance.
Net Salary Calculator
Estimate monthly net pay after Social Security contributions and regional IRPF.
Open tool →Unemployment Benefit Calculator
Calculate accumulated days of entitlement and monthly benefit payments from SEPE.
Open tool →Freelance Invoice Calculator
Calculate invoice total with 21% VAT and 15%/7% IRPF retention.
Open tool →Freelance Contribution Fee
Calculate real net income contribution brackets for Spanish freelancers.
Open tool →Mortgage Monthly Fee
Calculate monthly mortgage payment with French amortization schedule.
Open tool →Severance Pay Calculator
Simulate severance pay for unfair dismissal (33 days) or objective dismissal (20 days).
Open tool →Gross to Net Salary Converter
Convert net target salary to required annual gross salary.
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