Developer Tools & Edge API Engine

Zero external dependencies, client-side browser execution and 100% free algorithms. Run interactively in your browser or integrate directly into your codebase via REST API.

Client Sandbox (0ms)33 Utilities • REST API Ready100% Free & No-Log
/
FEATURED STUDIOLIVE SVG

GitHub Dynamic SVG Badge Studio

Generate real-time live SVG status badges and Markdown snippets for 1036+ public APIs. Embed verified endpoints directly into your GitHub README.

Open Badge Studio
v4 & v7

UUID & GUID Generator

Instantly generate v4 and v7 cryptographic UUIDs/GUIDs with batch export and case formatting.

GET/api/v1/tools/uuid
Open
Prettify & Minify

JSON Formatter & Validator

Instantly prettify, minify, sort keys alphabetically and validate JSON syntax errors.

POST/api/v1/tools/json-format
Open
UTF-8 & URL-Safe

Base64 Encoder & Decoder

Encode and decode text strings with full UTF-8 Unicode and URL-safe Base64 support.

POST/api/v1/tools/base64
Open
Crypto Secure

Secure Password Generator

Generate cryptographically strong random passwords, secure PINs and calculate entropy scores.

GET/api/v1/tools/password
Open
SVG & PNG

QR Code Generator (SVG & PNG)

Instantly generate crisp vector SVG or raster PNG QR codes for any URL, text or Wi-Fi data.

GET/api/v1/tools/qr-code
Open
GFM & TOC

Markdown to HTML Converter

Convert GitHub Flavored Markdown (GFM) to clean sanitized HTML with table of contents and stats.

POST/api/v1/tools/markdown-to-html
Open
MD5 & SHA-256/512

Hash & HMAC Generator

Calculate MD5, SHA-1, SHA-256, SHA-512, and secret-keyed HMAC digests instantly in one place.

POST/api/v1/tools/hash
Open
Multi Format

Lorem Ipsum Dummy Text Generator

Generate paragraphs, sentences and words of classic Latin or Turkish dummy placeholder text.

GET/api/v1/tools/lorem-ipsum
Open
Epoch & ISO 8601

Unix Timestamp & Date Converter

Convert seamlessly between Unix epoch timestamps (seconds/ms), ISO 8601, UTC and local timezones.

GET/api/v1/tools/timestamp
Open
RFC 3986 & Query Parser

URL Encoder & Decoder

Encode, decode and parse complex URL strings, paths, and query string parameters.

POST/api/v1/tools/url-codec
Open
Realtime SSE

Live Webhook Tester & Event Inspector

Get an instant unique webhook URL; capture and inspect HTTP requests and payloads with real-time SSE streaming.

POST/api/v1/webhook/[channel]
Open
100% Private (0-Upload)

PDF Merger & Page Splitter

Instantly combine multiple PDF documents into one or extract specific pages with 100% privacy.

POST/api/v1/tools/pdf-merge-split
Open
Live Network Probe

Live DNS, SSL & Security Headers Inspector

Inspect any domain’s DNS records, SSL expiration days, and OWASP security headers in real-time.

POST/api/v1/tools/dns-ssl-check
Open
Hardware Accelerated

Smart Image Compressor & WebP Converter

Compress PNG, JPG, and WebP images up to 80% without quality loss directly in your browser.

POST/api/v1/tools/image-optimizer
Open
Metadata Stripper

PDF Compressor & File Reducer

Reduce heavy PDF document file sizes for emails and application portals in seconds.

POST/api/v1/tools/pdf-compressor
Open
AES Cryptographic

PDF Password Protect & Unlock

Add strong password protection to confidential PDFs or permanently remove known passwords.

POST/api/v1/tools/pdf-protect-unlock
Open
Stamp & Remove

PDF Watermark Add & Remover (Stamp / Sign)

Stamp text watermarks (CONFIDENTIAL, DRAFT), place signature stamps, or cleanly remove existing watermarks.

POST/api/v1/tools/pdf-watermark-sign
Open
Stream Eraser

Remove Watermark from PDF Online

Cleanly excise and delete text watermarks from PDF documents in seconds without cloud uploads.

POST/api/v1/tools/pdf-watermark-sign
Open
Stamp & Sign

Add Watermark to PDF (Stamp & Sign)

Stamp text watermarks (CONFIDENTIAL, DRAFT) or transparent signature PNGs onto PDF pages online.

POST/api/v1/tools/pdf-watermark-sign
Open
AES-256 Encrypt

Protect PDF with Password Online

Add strong cryptographic password encryption to confidential PDFs in seconds.

POST/api/v1/tools/pdf-protect-unlock
Open
AES Decrypt

Unlock PDF Online – Remove Password

Permanently remove passwords from protected PDFs you know the credentials for.

POST/api/v1/tools/pdf-protect-unlock
Open
Multi-Merge

Merge PDF – Combine Multiple Files Online

Combine multiple PDF files into a single organized document in seconds.

POST/api/v1/tools/pdf-merge-split
Open
Page Splitter

Split PDF Online – Extract Pages

Extract specific pages or page ranges from large PDF documents online.

POST/api/v1/tools/pdf-merge-split
Open
UTF-8 Encoder

Base64 Encoder Online

Encode plain text, JSON, or UTF-8 strings into standard and URL-safe Base64 in real time.

POST/api/v1/tools/base64
Open
UTF-8 Decoder

Base64 Decoder Online

Decode Base64 strings back to readable UTF-8 text, JSON, or source code instantly.

POST/api/v1/tools/base64
Open
RFC 3986 Encode

URL Encoder Online

Encode special characters and query strings into safe RFC 3986 percent-encoded format.

POST/api/v1/tools/url-codec
Open
URL Parser

URL Decoder & Parameter Parser

Decode percent-encoded URL strings and inspect protocol, hostname, path, and search parameters.

POST/api/v1/tools/url-codec
Open
Code 128 & SVG

Code 128 1D Barcode Generator

Instantly generate vector SVG and PNG Code 128 barcodes with custom dimensions, print, and export.

GET/api/v1/tools/barcode
Open
ITU-T E.164

International Phone Validator & E.164 Formatter

Validate phone numbers across 240+ countries, parse E.164 formats, detect carrier line types, and generate RFC 3966 URIs.

GET/api/v1/tools/phone-validate
Open
Flesch & Fog

Text Readability & Content Metrics Analyzer

Calculate Flesch Reading Ease, Grade Level, Gunning Fog index, syllable counts, and reading durations in real time.

POST/api/v1/tools/readability
Open
RFC 9082 RDAP

ICANN RDAP / Modern WHOIS Domain Inspector

Authoritative ICANN RDAP (RFC 9082) domain registry inspector for expiration dates, registrar metadata, and DNSSEC.

GET/api/v1/tools/rdap-lookup
Open
MOD 97-10

ISO 13616 IBAN & BIC/SWIFT Validator

Validate international bank account numbers (IBAN) across 70+ countries with MOD 97-10 math and SWIFT/BIC parsing.

POST/api/v1/tools/iban-validate
Open
MaxMind & GeoJS

IP Geolocation & ASN Lookup

Lookup geographic location, ISP, ASN, timezone, and coordinates for any IP address or domain name on an interactive map.

GET/api/v1/tools/ip-lookup
Open