Free Online Tools
PDF Tools
Compress PDF
Optimize and compress a PDF file to reduce its file size.
Merge PDFs
Merge multiple PDF files into one document quickly and securely.
Strip PDF Metadata
Remove all metadata (author, title, creation date, etc.) from a PDF file.
Protect PDF
Encrypt a PDF file with credentials and permission restrictions.
Rearrange Pages
Change the page order of a PDF file via drag and drop.
Remove Pages
Remove specific pages from a PDF file.
Rotate Pages
Rotate pages of a PDF file by 90, 180, or 270 degrees.
Split PDF
Split a PDF into individual pages or page ranges.
Unlock PDF
Remove credential protection from a PDF file.
Image Tools
Compress Image
Re-compress images with adjustable quality level to reduce file size.
Convert Image
Convert images between PNG, JPG, GIF, TIFF, and BMP formats.
Crop Image
Crop images by coordinates, center, or aspect ratio.
Favicon Generator
Generate favicons in all common sizes (16x16 to 256x256) from an image as a ZIP archive.
Placeholder Image
Generate placeholder images with custom dimensions, colors and text.
Resize Image
Resize images to desired dimensions with optional aspect ratio preservation.
Rotate & Flip Image
Rotate images by 90/180/270 degrees and/or flip horizontally or vertically.
Social Media Image Sizes
Resize and crop images to optimal dimensions for LinkedIn, Xing, Instagram, Facebook, and X.
Strip EXIF Data
Remove all metadata and EXIF information from images (GDPR compliant).
Images to PDF
Convert one or more images into a PDF document.
QR Code Tools
QR Code for Email
Generate a mailto QR code with recipient, subject and body.
QR Code for Event
Share a calendar event as a QR code. Simply scan and save the appointment.
QR Code for Phone Number
Share a phone number as a QR code. Simply scan and call.
QR Code for Text
Generate a QR code from any text with customizable colors and formats.
QR Code for URL
Generate a QR code from a URL with customizable colors and formats.
QR Code for vCard
Share contact details as a vCard QR code. Simply scan and save.
WiFi QR Code
Share WiFi credentials as a QR code. Simply scan and connect.
Conversion
Convert CSV to Excel
Convert CSV files to Excel spreadsheets (XLSX) quickly and securely.
Convert JSON/CSV/XML
Convert data between JSON, CSV, and XML quickly and securely.
Convert Markdown to DOCX
Convert a Markdown file (.md) to a Word document (.docx).
Convert Markdown to PDF
Convert a Markdown file (.md) to a professional PDF document.
Convert Excel to CSV
Convert Excel spreadsheets (XLSX) to CSV files quickly and securely.
Business Tools
Email Signature Generator
Create a professional HTML email signature.
E-Invoice Validator
Validate ZUGFeRD and XRechnung XML invoices.
E-Invoice Viewer
View ZUGFeRD and XRechnung XML invoices as HTML.
IBAN Validator
Validate IBAN numbers and look up bank details.
iCalendar Generator
Generate iCalendar files (.ics) for events and appointments.
Legal Notice Generator
Generate a legally compliant German Impressum for your website.
VAT ID Validator
Validate EU VAT identification numbers and check via VIES.
vCard Generator
Generate digital business cards (.vcf).
Developer Tools
Base64 Encoding
Encode or decode text to/from Base64.
Cron Expression
Parse cron expressions and compute next execution times.
Text Diff
Compare two texts and show differences.
File Hash Calculator
Compute MD5, SHA-1, SHA-256 and SHA-512 hashes of a file and optionally verify.
Hash Generator
Compute MD5, SHA-1, SHA-256 and SHA-512 hash values.
JSON Formatter
Format, minify or validate JSON.
JWT Decoder
Decode JSON Web Tokens and inspect contents (no signature verification).
Password Generator
Generate secure, random passwords.
Regex Tester
Test regular expressions and view matches.
Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Token Counter
Count LLM tokens, compare models and estimate costs.
URL Encoding
URL-encode or decode text.
UUID/ID Generator
Generate UUIDs (v4, v7), ULIDs and NanoIDs.
XML Formatter
Format or validate XML.
YAML Formatter
Format, validate or convert YAML to/from JSON.
Text Tools
Design Tools
Color Converter
Convert colors between HEX, RGB, HSL and CMYK.
Color Palette
Generate complementary, analogous, triadic and other color palettes.
Generate OG Image
Generate Open Graph images with title, subtitle, and customizable colors.
robots.txt Generator
Generate robots.txt files for search engines.
Sitemap Generator
Generate XML sitemaps from URL lists.
Optimize SVG
Clean SVG files by removing comments, metadata, and editor namespaces.