DevsTool

100% Local

DevsTool

31+ fast, privacy-first utilities for developers and DevOps engineers — all client-side, no data leaves your browser.

31 tools

JSON Formatter

Format, validate, and minify JSON data

JWT Decoder

Inspect JSON Web Tokens and check expiry

Base64 Encoder

Encode and decode Base64 strings safely

Diff Checker

Compare two texts line, word, or char-level

Markdown Preview

Write and preview Markdown with GFM support

Hash Generator

MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes

JSON ↔ YAML

Convert between JSON and YAML with auto-detect

URL Encoder

Safely encode and decode URL parameters

UUID Generator

Generate and validate RFC-4122 UUIDs

Timestamp Converter

Convert Unix timestamps to readable dates

HTML Viewer

Live HTML preview with device-width simulation

GitHub Actions

Generate GitHub Actions workflow YAML visually

GitLab CI

Generate GitLab CI/CD pipeline YAML visually

K8s Generator

Generate Deployment, Service, Ingress, HPA YAML

Helm Chart Generator

Generate Chart.yaml, values.yaml, and templates

Terraform tfvars

Generate .tfvars files from a variable form

Dockerfile Linter

Lint Dockerfiles against 12 best-practice rules

YAML Validator

Lint and format Kubernetes and CI configs

AWS ARN Parser

Parse and validate AWS ARN strings into components

Cloud Storage URL

Parse S3, GCS, and Azure Blob Storage URLs

CIDR Calculator

Subnet mask, host range, broadcast from CIDR

SSL Decoder

Inspect SSL/TLS certs — SANs, expiry, fingerprints

HTTP Headers

Inspect response headers and security posture

Port Reference

Look up well-known TCP/UDP port numbers

PromQL Builder

Build Prometheus queries visually with aggregations

Regex Log Parser

Test regex against log lines, extract named groups

Log Formatter

Format JSON logs and filter by severity level

Secret Scanner

Detect AWS, GCP, GitHub, Azure credentials in text

ENV Parser

Parse and validate .env files, export to JSON

Cron Builder

Build and understand cron expressions

Git Command Builder

Build complex git commands with a visual UI