All Online Tools

Crop PDF Online

Crop PDF page margins and download the adjusted file.

Crop Video

Crop a video to a custom width, height and position.

CSP Header Builder & Validator

Build and inspect a Content-Security-Policy header with common directives and safe defaults.

CSR Generator

Generate a private key and certificate signing request in your browser.

CSS Beautifier

Beautify and format CSS code.

CSS Box Shadow Generator

Create and preview CSS box-shadow values including inset, blur, spread and colour.

CSS clamp() Fluid Type Generator

Generate responsive CSS clamp values from minimum, maximum and viewport measurements.

CSS Gradient Generator

Build linear or radial CSS gradients with adjustable angle, colours and stop positions.

CSS Grid & Flexbox Layout Builder

Generate responsive Grid or Flexbox CSS and preview a configurable multi-item layout.

CSS Minifier

Minify CSS code instantly.

CSV Cleaner & Validator

Detect delimiters, normalize row widths, identify malformed rows and export cleaned CSV.

CSV Splitter & Merger

Split a CSV by row count or merge compatible CSV files with one shared header.

CSV to JSON Converter

Convert CSV rows into formatted JSON objects.

Currency Converter

Convert currencies using current reference exchange rates.

Digital Advertising Metrics Calculator

Calculate CTR, CPC, CPM, CPA, conversion rate, ROAS and estimated ad revenue in one report.

Digital Business Card Generator

Create a downloadable contact card and vCard file.

Discount Calculator

Calculate sale price, amount saved and combined sequential discounts.

DKIM Record Checker

Verify a DKIM public key using its selector.

DMARC Record Checker

Inspect a domain DMARC policy and reporting settings.

DMARC Record Generator

Build a valid DMARC DNS record with guided options.

DNS Lookup

Find DNS records for any domain name.

DNS Propagation Checker

Compare DNS records across trusted public resolvers.

DNS Zone File Validator & Conflict Checker

Inspect pasted DNS zone records for common syntax errors, duplicates, CNAME conflicts and mail-record issues.

DNSSEC Checker

Check DS and DNSKEY records for a domain.

Domain Expiry Checker

Check domain registration and expiry dates.

DPI & PPI Calculator

Calculate print size, pixel density or required pixels from dimensions and viewing assumptions.

Duplicate File Finder

Group selected local files by size and SHA-256 content hash without uploading them.

Edit PDF Online

Add text to a PDF and download the edited document.

Email Deliverability Checker

Review MX, SPF and DMARC setup without sending an email.

Email Header Analyzer

Parse email headers and review delivery and authentication details.

Email Signature Generator

Create a responsive professional HTML email signature.

Email Subject Line Analyzer

Review subject length, capitalization, punctuation, spam-risk phrases and preview text balance.

EMI Calculator

Calculate EMI with amortization schedule and detailed report.

EPUB to PDF Converter

Extract EPUB chapters and create a readable PDF.

Estimate Generator

Create an estimate or proposal PDF quickly.

Excel to PDF Converter

Turn CSV or spreadsheet data into a printable PDF.

EXIF Metadata Remover

Strip photo metadata by safely re-encoding the image in your browser.

Extract Audio from Video

Save the audio track from a video as MP3.

Extract Images from PDF

Render PDF pages as downloadable PNG or JPEG images in a ZIP archive.

Extract PDF Pages

Select page ranges and save them as a separate PDF.

Face Blur Tool

Detect and blur faces, with a manual fallback when detection is unavailable.

Facebook Cover Resizer

Resize images for Facebook cover size.

Favicon Generator

Generate favicon in 8 different sizes + HTML code.

File Checksum Verifier

Calculate a local file checksum and compare it with an expected SHA-256, SHA-384 or SHA-512 value.

Filename Cleaner

Normalize unsafe characters, spacing, case and separators in a list of filenames.

Fill PDF Form

Fill existing interactive PDF form fields in your browser.

Flatten PDF Forms

Flatten interactive form fields into a non-editable PDF copy for consistent viewing.

Folder Tree Generator

Create a clean text or Markdown directory tree from a selected local folder.