DEEPAK PASWAN Web Developer & Technical Writer

Tools for Developers, SEO & the Web

Free tools for everyday web tasks: format code, convert and compress images, work with PDFs, check DNS and HTTP headers, and generate SEO markup. They do real work on real files, and you do not need an account.

84 Tools

7 Categories

Deepak Paswan tools directory

⌘K

Quick Access

Jump to a category and find the right tool quickly.

SEO Tools

Developer Tools

Network & DNS

PDF Tools

Image Tools

WordPress Tools

Generator Tools

Network & DNS

Look up what a domain and a server are doing: DNS records, WHOIS and registration data, redirect chains, HTTP status codes and response headers. The lookups run from this server, not from your browser, so results can differ from what you see locally.

6 tools arrow_upward

Domain Age Checker

Find out how old a domain is: creation date, expiry date and age, taken from RDAP...

Domain to IP Lookup

Resolve a domain to its public IPv4 and IPv6 addresses, with reverse DNS names where available....

HTTP Redirect Chain Checker

Follow a URL through its 301, 302, 307 and 308 redirects, hop by hop, up to...

HTTP Response Headers Checker

Fetch a URL and see its response headers grouped into security, caching, content, server and other....

HTTP Status Code Checker

Request a URL with GET or HEAD and see its HTTP status code, response time, content...

WHOIS / RDAP Domain Lookup

Look up a domain's registrar, creation and expiry dates, name servers and status codes through RDAP....

PDF Tools

Merge, split, rotate and convert PDFs, turn images or HTML into PDF, convert Office files, and password-protect or unlock a document. Some of these are simple edits and some convert between layouts, which is never perfect. Each tool page says what to expect.

17 tools arrow_upward

Excel to PDF

Convert an Excel or CSV file to PDF with a choice of A4, A3, Letter or...

HTML to PDF

Convert pasted HTML and CSS to a PDF. The HTML is sanitized on the server, then...

Images to PDF (Batch)

Combine up to 10 JPG and PNG images into a single PDF, one image per A4...

JPG to PDF

Turn one or more JPG images into a PDF with each image centred on its own...

Merge PDF

Combine two to ten PDF files into a single document. Files are uploaded to the server,...

PDF Editor

Edit a PDF in your browser: add text, shapes, drawings and images, white out text, rotate...

PDF Page Extractor

Extract chosen pages or page ranges from a PDF into a new file. Uses the same...

PDF to Excel

Detect tables in a text-based PDF and write them to an Excel workbook, one sheet per...

PDF to PDF/A

Add PDF/A metadata and an sRGB output intent to a PDF. Best effort: the result may...

PDF to PowerPoint

Convert each PDF page into a PowerPoint slide with text boxes and images placed where they...

PDF to Word

Convert a text-based PDF into an editable Word document. It cannot read scanned PDFs, and complex...

PNG to PDF

Convert PNG images to a PDF with one image per A4 page. Transparent areas become white....

PPT to PDF

Convert a .pptx file to PDF. It is redrawn by a custom converter, not PowerPoint, so...

Protect PDF

Password-protect a PDF with AES-256 encryption and set permissions for printing, copying, annotating and changing it....

Rotate PDF

Rotate every page of a PDF by 90, 180 or 270 degrees and download the result....

Split PDF

Pick page numbers or ranges like 1-3, 5 and get a new PDF containing only those...

Unlock PDF

Remove password protection from a PDF when you know the password. It cannot crack or guess...

Image Tools

Convert images between JPG, PNG, WebP and AVIF, compress them, resize them and crop them. Images are processed on the server and kept only temporarily. Quality, transparency and file size behave differently in each format, and each tool page explains how.

20 tools arrow_upward

AVIF Compressor

Re-encode an AVIF at a chosen quality, with before and after sizes. AVIF is encoded on...

AVIF to JPG Converter

Convert an AVIF to JPG in your browser with a quality slider. Transparent areas are filled...

AVIF to PNG Converter

Convert an AVIF to PNG in your browser with transparency kept, for editors and apps that...

Image Compressor (Universal)

Compress a JPG, PNG, WebP or AVIF with a quality slider and see the before and...

Image Cropper

Drag a crop area, choose a fixed aspect ratio or free selection, and export. Runs in...

Image Dimensions Checker

Pick an image to see its pixel width and height, aspect ratio, megapixels and file size....

Image Quality & Format Converter

Convert an image to JPG, PNG, WebP or AVIF, set the quality and optionally resize it....

Image Resizer

Resize a JPG, PNG, WebP or AVIF by width and height with an aspect ratio lock...

JPG Compressor

Shrink a JPG by re-saving it at a lower quality, in your browser. See the original...

JPG to AVIF Converter

Convert a JPG to AVIF with a quality slider. AVIF can be much smaller than JPG....

JPG to PNG Converter

Convert a JPG to PNG in your browser. Pixels are kept as they are, the file...

JPG to WebP Converter

Convert a JPG to WebP with a quality slider, in your browser. WebP files are usually...

PNG Compressor

Re-encode a PNG in your browser. PNG is lossless and has no quality setting there, so...

PNG to AVIF Converter

Convert a PNG to AVIF and keep transparency. AVIF is encoded on the server, so it...

PNG to JPG Converter

Convert a PNG to JPG in your browser with a quality slider. Transparent areas are filled...

PNG to WebP Converter

Convert a PNG to WebP in your browser and keep transparency. Useful for logos, screenshots and...

WebP Compressor

Re-save a WebP at a lower quality to cut its size, with before and after sizes...

WebP to AVIF Converter

Convert a WebP to AVIF with a quality slider. Gains vary, so check the size and...

WebP to JPG Converter

Convert a WebP to JPG in your browser with a quality slider. Transparent areas are filled...

WebP to PNG Converter

Convert a WebP to PNG in your browser and keep transparency. PNG is lossless but usually...

Generator Tools

Generators for markup you would otherwise write by hand: .htaccess redirect rules, JSON-LD schema, meta tags and clean URL slugs. They run in your browser. Read the output before you deploy it.

4 tools arrow_upward

.htaccess 301 & 302 Redirect Generator

Turn a list of old and new URLs into Apache .htaccess redirect rules, using Redirect or...

Schema Markup Generator (JSON-LD)

Generate simple JSON-LD for Article, Person, Organization, LocalBusiness, Product, BreadcrumbList or FAQPage. Basic fields only. Review...

SEO Meta Tag Generator

Generate HTML head tags: charset, viewport, title, description, author, robots, plus basic Open Graph and Twitter...

URL Slug Generator

Convert a headline into a lowercase URL slug with a hyphen or underscore, optionally removing common...

Technical notes

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