Free Developer & Security Tools

Generate secrets, manage environment files, and decode tokens — all with zero server uploads and zero friction.

Every developer needs quick, trustworthy tools for secrets, environment files, and token inspection. These utilities run entirely in your browser — nothing is logged, stored, or sent to any server. Built by the team behind Envless, they are secure by default and ready to use immediately.

Secret & Password Generator

Generate strong passwords, passphrases, PINs, and API keys — free and 100% client-side.

Password generator

.env File Converter

Convert .env files to JSON, YAML, Docker, Kubernetes, shell exports, and TOML — right in your browser.

.env converter

JWT Decoder

Decode JWT headers, payloads, and claims — with local expiry checks and HS256/RS256 verification.

JWT decoder

AES Text Encryption

Encrypt and decrypt text locally with AES-256-GCM and a passphrase — nothing leaves your browser.

AES encryption

.env Validator

Lint your .env for duplicate keys, unquoted values, and secrets left in plaintext.

.env linter

.env.example Generator

Strip the values from a .env to create a safe, shareable .env.example for git.

.env.example

Kubernetes Secret Generator

Turn a .env into a ready-to-apply Kubernetes Secret with Base64-encoded values.

Kubernetes secret

JWT Generator

Build and sign HS256/384/512 or RS256/ES256 JSON Web Tokens locally — set your own claims and key.

JWT generator

.env Diff

Compare two .env files and spot missing, extra, and changed keys in seconds.

.env diff

Hash Generator

Hash text or a file with SHA-256/384/512, or create an HMAC keyed hash — instantly and locally.

SHA-256 hash generator

Base64 Encode / Decode

Encode text or a file to Base64, decode it back to a file, or emit a data URI — 100% local.

Base64 encode decode

RSA & EC Key Pair Generator

Generate RSA and ECDSA key pairs and export them as PEM, OpenSSH SSH key, or JWK.

RSA key generator

Connection String Parser

Parse a DATABASE_URL into host, port, user, password, and params — and rebuild it.

connection string parser

UUID Generator

Generate random UUID v4, time-sortable UUID v7, or the NIL UUID in bulk — free and local.

UUID generator

Password Strength Checker

Measure password entropy in bits and estimate crack time — nothing is sent anywhere.

password strength checker

Get Started

Ship secrets, not chaos.

Start free today and discover why developers trust Envless for end-to-end encrypted, versioned secrets across every environment.