PiliBox

MAC Address OUI Resolver

Look up the manufacturer/vendor of a network device from its MAC address (OUI).

Is It Down or Up?

Check whether a website is up or down from the server, and see the exact HTTP status code it returns.

NSLookup

Resolve a domain's DNS records (A, AAAA, MX, TXT, NS, CNAME) from the server, with a choice of DNS resolver.

DNS Propagation Checker

Query multiple public DNS resolvers (Google, Cloudflare, OpenDNS...) in parallel and compare their answers to check DNS propagation.

SSL/TLS Certificate Checker

Check a domain's HTTPS certificate validity, expiration date, and certificate chain.

Traceroute

Trace the network path to a host, either from the server (real hop-by-hop traceroute) or from your browser (client-side latency probe) — and compare both.

WHOIS Lookup

Requête WHOIS réelle sur un nom de domaine ou une adresse IP, avec détection automatique du registre.

Bandwidth Calculator

Calculate file transfer time from bandwidth and file size, or convert between bandwidth/data units (bps, Kbps, Mbps, Gbps, MB, GB...).

IPv4 Subnet Calculator

Calculate network address, broadcast address, host range and usable hosts from an IP and CIDR/mask.

MAC Address Format Converter

Convert a MAC address between colon, hyphen, Cisco dot, and raw (no separator) formats instantly.

What's My IP

Instantly reveal your public IP address (IPv4 and IPv6), approximate geolocation, ISP/Organization, and browser user-agent.

CIDR to IP Range

Convert a CIDR block into its full IP range, or list every address it contains.

iptables Rule Generator

Build common iptables rules (allow/block ports, IPs, forwarding) from a simple form, without memorizing the syntax.

IPv6 Subnet Calculator

Expand an IPv6 CIDR block into its full network range and address count.

MTU / Ping Payload Calculator

Figure out max ping payload size for a given MTU, and how many fragments a packet needs.

MAC Address Generator

Generate random MAC addresses, optionally starting with a specific OUI (vendor) prefix.

URL Parser

Break a URL down into its protocol, host, port, path, query parameters, and hash.

XOR Cipher (Text & File)

XOR text and files against text and files.

Caesar Cipher Encoder / Decoder

Encrypt or decrypt text using the classic Caesar shift cipher.

Atbash Cipher

Encode or decode text using the Atbash cipher, which reverses the alphabet (A↔Z, B↔Y...).

Hash Generator (MD5 / SHA-1 / SHA-256 / SHA-512)

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text, directly in your browser.

Password Generator

Generate strong random passwords with configurable length and character sets.

Playfair Cipher Encoder / Decoder

Encrypt or decrypt text using the classic Playfair digraph substitution cipher with a custom keyword.

ROT Cipher (ROT1, ROT5, ROT13, ROT18, ROT47, ROT8000)

All-in-one ROT cipher encoder/decoder: ROT1, ROT5, ROT13, ROT18, ROT47, and the joke ROT8000 (emoji cipher).

Password Strength Checker

Estimate password entropy and rough crack time based on character variety and length.

Vigenère Cipher Encoder / Decoder

Encrypt or decrypt text with the Vigenère cipher using a keyword.

ROT13 Encoder / Decoder

Apply the simple ROT13 letter substitution — the same operation encodes and decodes.

Certificate Converter (PEM ⇄ DER)

Convert X.509 certificates between PEM (Base64) and DER (hex/binary) representations, directly in your browser.

Hash Format Tester (Type Identification)

Paste a hash and identify whether it looks like NTLM, LM, NTLMv2, MD5, SHA-1/256/512, bcrypt and more, using structural heuristics — no cracking involved.

JWT Generator / Decoder

Encode and decode JSON Web Tokens (JWT), verify signatures, and inspect claims — all client-side with no data sent to any server.

PowerShell Obfuscator / Deobfuscator / Formatter

Obfuscate, deobfuscate, one-line, and pretty-format PowerShell scripts entirely in your browser.

Reverse Shell Generator

Generate ready-to-use reverse shell one-liners for the tool you actually have available, with syntax highlighting.

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to plain text, including UTF-8 support.

QR Code Generator

Convert any text, URL, or message into a scannable QR code image, with optional custom logo and colors.

All Bases Encoder / Decoder

Convert numbers between any base (binary, octal, decimal, hex, base32, base36...) and convert text to/from a chosen numeric base.

Morse Code Encoder / Decoder

Translate text to Morse code and back, with adjustable playback of the tone.

QR Code Decoder

Decode QR codes from an image file, directly in your browser. Nothing is uploaded.

Text ⇄ ASCII / Binary / Hex Converter

Convert text to and from ASCII codes, binary, and hexadecimal representations instantly.

Emoji Toolkit

Convert emoji to Unicode code points, HTML entities, UTF-8 bytes — plus a searchable emoji picker.

1337 Speak Converter

Convert regular text to and from leet speak (1337 5p34k) and back.

Exif Data Viewer

View EXIF metadata embedded in JPEG photos (camera model, date, GPS location, exposure settings...) entirely in your browser.

EXIF Photo Location Mapper

Extract the GPS location from a photo's EXIF data and view it on an OpenStreetMap, with a direct link to Google Maps.

Image Compressor

Reduce the file size of JPEG, PNG, and WebP images directly in your browser.

Social Media Image Resizer

Resize and crop an image to fit popular social media formats (square post, story, cover...) with a draggable, movable crop — directly in your browser.

Video to GIF Converter

Convert a video clip into an animated GIF, right in your browser, with playback modes like normal loop, ping-pong (back-and-forth), and reverse.

Image Resizer

Resize images to an exact width and height, directly in your browser.

Image Cropper

Crop images to a precise region by dragging a selection box, directly in your browser.

Image Format Converter

Convert images between PNG, JPG, WebP, GIF, BMP, SVG, ICO, HEIC, TIFF, AVIF and more — client-side when possible, server-side for advanced formats.

Image Channel & Bit-Plane Splitter

Decompose an image into its Alpha, Red, Green, Blue channels and bit planes — useful for steganography (LSB) analysis and image forensics.

CSS Gradient Generator

Visually build a linear-gradient and copy the ready-to-use CSS.

Color Palette Picker (Manual & Auto) from Image

Upload an image to auto-extract its dominant color palette, or manually pick any pixel's exact color — with HEX/RGB/HSL output ready to copy.

Color Converter

Convert colors between HEX, RGB, and HSL formats with a live preview.

Image to PDF Converter

Combine one or several images into a single PDF file, directly in your browser.

PDF Image Extractor

Extract and download every embedded image from a PDF file, directly in your browser.

Word to PDF

PowerPoint to PDF

Excel to PDF

Instruction Set Architecture Cheatsheet (ISA)

Look up x86, ARM, and RISC-V instructions by mnemonic, with syntax, description, and category.

JSON Formatter / Validator

Pretty-print, minify, and validate JSON with clear error messages.

Regex Tester

Test regular expressions against a string, see matches highlighted and capture groups.

Text Diff Checker

Compare two texts and highlight the added, removed, and unchanged lines.

Markdown Previewer

Write Markdown on the left, see the rendered HTML preview live on the right.

Cron Expression Parser & Builder

Build a cron expression with an easy visual picker, or parse an existing one into plain English with upcoming run times.

Timestamp / Epoch Converter

Convert between Unix timestamps and human-readable dates, in any timezone.

Slug Generator

Turn any text into a clean, URL-safe slug (kebab-case).

Text Case Converter

Convert text between camelCase, snake_case, kebab-case, PascalCase, and more.

CSS / JS Minifier & Beautifier

Minify CSS/JS to save bytes, or beautify minified code back into a readable format.

Date Calculator

Calculate the difference between two dates, add or subtract time from a date, or find someone's exact age.

Boot Menu & BIOS Key Finder

Find the correct key to press for the BIOS/UEFI setup or the one-time boot menu, by computer brand.

Find & Replace (with Special Characters)

Replace characters or text in a string, including special characters like newlines, tabs, carriage returns, and more.

Line Counter + Unique Value Counter

Count total lines, non-empty lines, and unique values in a list of text (one value per line).

Percentage Calculator

Calculate percentages, percentage changes, and add or subtract a percentage from a value — all in your browser.

RAID Calculator

Calculate usable capacity, storage efficiency, and fault tolerance for RAID 0, 1, 5, 6, and 10 arrays.

CLI Flags Generator

Build common command-line commands (curl, grep, tar, rsync, nmap, docker run, ffmpeg) by picking flags from a checklist — no more googling syntax.

Special Character Keyboard Shortcuts

Look up keyboard shortcuts to type special characters (€, é, ©, emoji...) on Windows, macOS, and Linux.

Storage Unit Converter

Convert between storage units (bytes, KB/KiB, MB/MiB, GB/GiB, TB/TiB...), with clear separation between decimal (SI, ×1000) and binary (IEC, ×1024) units.

Username Availability Checker

Check if a username is already taken across multiple platforms (GitHub, X, Instagram, TikTok, Reddit, and more).

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text — by paragraphs, sentences, or words.

Word / Character Counter

Count words, characters, sentences, paragraphs, and estimate reading time.