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MyDevToolbox

Developer tools that respect your time and your data

Hashing, encoding, JSON, networking and text utilities. Most tools run entirely in your browser, so your data never leaves your device.

Cryptography & Security

Hashing, password validation, JWT inspection and SSH key generation.

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Hash Generator

Client-side

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes in your browser.

Bcrypt / Argon2 Validator

Server-side

Hash and verify passwords with bcrypt and Argon2.

JWT Decoder

Client-side

Inspect a JSON Web Token's header, payload and signature.

SSH Key Generator

Server-side

Create downloadable SSH key pairs (.pem / .pub).

Data Conversion

Convert, format and encode JSON, YAML, CSV, TOML and Base64 data.

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Universal Converter

Hybrid

Convert between JSON, YAML, CSV and TOML.

JSON Formatter & Minifier

Client-side

Beautify, validate and minify JSON, even large documents.

Base64 / URL Encoder

Client-side

Encode and decode Base64 and URL-encoded text and files.

DevOps & Infrastructure

Subnet calculations, DNS lookups, curl conversion and cron expressions.

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Subnet Calculator

Server-side

Break down IPv4/IPv6 ranges, CIDR masks and host counts.

DNS Lookup

Server-side

Query A, AAAA, MX, TXT, CNAME and other DNS records in real time.

Curl to Code

Client-side

Translate curl commands into Python, JavaScript, Go and more.

Cron Expression Descriptor

Client-side

Turn cron syntax into plain human language.

Text & Code

Test regular expressions and compare text side by side.

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Regex Tester

Hybrid

Test regular expressions with Python (re) and PCRE flavours.

Diff Checker

Server-side

Compare two texts line by line and highlight the differences.