DevOps Tools Built for Engineers

Fast, privacy-first utilities that run entirely in your browser. No login. No tracking. No server processing.

Browse Tools
Docker Docker
Kubernetes Kubernetes
Pulumi Pulumi
Terraform Terraform
Git Git
GitHub GitHub
Ansible Ansible
Linux Linux
Prometheus Prometheus
Grafana Grafana
Argo Argo
Helm Helm
✓ 100% Client-Side
✓ No Login Required
✓ Open Source
✓ Privacy First
✓ Runs in Browser

WHY OPSBASH

Tools that respect your time and your data

Every tool on this site runs entirely in your browser. No account to create, no data sent to a server, no features locked behind a paywall. The cron builder handles AWS EventBridge's six-field format. The CIDR calculator accounts for the five IPs AWS reserves per subnet. The JWT decoder explains the difference between decoding and verifying. Built for engineers who want the answer in under ten seconds.

Cron Builder tool showing a visual schedule builder with plain English explanation of the cron expression running entirely in the browser

From the Blogs

Articles and guides for DevOps engineers

AWS Credential Chain Resolution Order: Why Your --profile Flag Doesn't Always Win
AWS · · By Rishabh Mishra

AWS Credential Chain Resolution Order: Why Your --profile Flag Doesn't Always Win
Four Cron Dialects Compared: Linux, EventBridge, Kubernetes CronJob, and GitHub Actions
How-To · · By Rishabh Mishra

Four Cron Dialects Compared: Linux, EventBridge, Kubernetes CronJob, and GitHub Actions
Base64 Encoding Explained: What It Actually Does in Kubernetes Secrets, JWTs, and Basic Auth
Security · · By Rishabh Mishra

Base64 Encoding Explained: What It Actually Does in Kubernetes Secrets, JWTs, and Basic Auth
View all posts →

Cheat Sheets

Quick Reference for the Tools You Use Every Day

Searchable, copy-ready command references. Everything runs in your browser.

KUBERNETES

Kubernetes Cheat Sheet

78 commands · Updated 2026-07-05
View Cheat Sheet →
Kubernetes
AWS

AWS CLI Cheat Sheet

119 commands · Updated 2026-07-05
View Cheat Sheet →
LINUX

Linux Commands Cheat Sheet

184 commands · Updated 2026-07-08
View Cheat Sheet →
Linux
CI-CD

GitHub CLI and Actions Cheat Sheet

180 commands · Updated 2026-07-10
View Cheat Sheet →
GitHub
CONTAINERS

Docker Cheat Sheet

49 commands · Updated 2026-07-05
View Cheat Sheet →
Docker
DEVELOPMENT

Git Cheat Sheet

49 commands · Updated 2026-07-05
View Cheat Sheet →
Git
Browse all 9 cheat sheets →

Tools

Everything runs in your browser

Cron Builder
Build and validate cron expressions for Linux, AWS, Kubernetes and GitHub Actions.
Automation
CIDR Calculator
Subnet masks, usable hosts, and network ranges for IPv4 and IPv6.
Networking
JWT Decoder
Decode JWT tokens and inspect the header, payload, and expiry status instantly.
Security
JSON to YAML Converter
Convert between JSON and YAML in real time. Bidirectional with error highlighting.
Development
chmod Calculator
Calculate Linux file permissions between octal, symbolic, and visual formats.
Linux
gitignore Generator
Generate .gitignore files for any technology stack. Download with one click.
Development
Docker Run to Compose
Convert docker run commands into docker-compose.yml and back again.
Containers
Timestamp Converter
Convert Unix epoch timestamps to human dates and back, with batch mode.
Time
JSON Diff & Schema Validator
Compare JSON files semantically and validate against schemas.
Development
Kubernetes Secret Decoder
Decode Kubernetes Secret YAML and convert .env files to K8s Secrets
Kubernetes
Kubernetes RBAC Visualizer
Paste Role and Binding YAML and see every subject's effective permissions, resolved correctly
Kubernetes
Log Sanitiser & PII Redactor
Redact PII and sensitive data from logs before sharing with AI tools
Security
Base64 Encoder/Decoder
Encode and decode Base64 strings and files instantly in your browser
Encoding
AWS Credential Chain Debugger
Interactive 6-step credential resolution visualizer and decision tree debugger.
AWS