Developer Utilities

A comprehensive suite of tools for Backend, SDET, Frontend, DevOps, and Data Engineers. Built for performance and usability.

DevUtils India brings together the small, repetitive tools every developer reaches for during a normal working day. Need to format a JSON response from a flaky API, generate a hundred fake users for a load test, decode a JWT without trusting an unknown site, or convert a CSV export to JSON before piping it into a script? It is all here, in one place, free, and without an account wall.

Almost every utility on this site runs entirely inside your browser. The payload you paste is never sent to a server. That makes the tools safe to use with internal API responses, support tickets containing customer identifiers, or anything else you would not paste into a random web app.

Privacy first

Client-side processing for every transformation tool. Your data does not touch our servers.

Always free

No accounts, no usage caps, no upsells. Hosting is funded by tasteful contextual ads.

Built for daily use

Keyboard shortcuts, dark mode, and small bundle sizes. Designed to disappear into your workflow.

Backend Tools

(7 tools)

Day-to-day backend chores: generating identifiers, formatting payloads, decoding tokens, working with timestamps and URLs. Each tool runs entirely in your browser so secrets and request bodies never leave the tab.

UUID Generator

Generate v1 & v4 UUIDs

JSON Formatter

Format and minify JSON

Base64 Encoder

Encode / decode Base64

JWT Debugger

Decode and validate JWTs

Hash Generator

MD5, SHA-1, SHA-256 & more

Epoch Converter

Unix timestamp converter

URL Encoder

Encode / decode URLs

SDET Tools

(4 tools)

QA and SDET helpers for building test data and inspecting differences between expected and actual output. Useful when authoring contract tests, fuzzing inputs, or hunting flaky regressions.

JSON Diff

Compare two JSON objects

Regex Tester

Test regex patterns live

Fake Data

Generate realistic test data

Random File Generator

Create random test files

Frontend Tools

(3 tools)

Visual tooling for the web — colour conversions, image encoding for inline assets, and placeholder content while you wait on the copy team. Designed for designers and frontend engineers alike.

Color Picker

Pick and convert colors

Image ↔ Base64

Convert images to Base64

Lorem Ipsum

Generate placeholder text

Text Tools

(3 tools)

Reading, comparing and measuring text. Word counts for blog drafts, side-by-side diffs for code review, and a typing speed test for the inevitable lunch-break leaderboard with your team.

Text Diff

Compare two text blocks

Text Analyzer

Word count & text stats

Typing Test

Measure typing speed (WPM)

DevOps Tools

(2 tools)

Infrastructure-side calculators: cron expression assistants and a CIDR / subnet calculator. Avoid the off-by-one mistakes that page someone at 3am.

Crontab Guru

Build cron expressions

CIDR Calc

Subnet & CIDR calculator

Data Tools

(4 tools)

Format and convert structured data. SQL pretty-printing, JSON ⇄ CSV, JSON ⇄ YAML and a multi-format file inspector. Handy when wrangling exports between systems.

SQL Formatter

Format SQL queries

CSV ↔ JSON

Convert CSV to/from JSON

YAML ↔ JSON

Convert YAML to/from JSON

File Formatter

Multi-format file handler

Why another developer tools site?

The web has plenty of "online JSON formatters" already, and most of them are fine. The reason DevUtils India exists is consistency: the same keyboard layout, the same dark theme, the same copy-to-clipboard behaviour, the same predictable URL structure across every tool. Switching between formatting JSON, decoding a JWT, generating fake users and validating a regex should feel like one app, not seven different ones in seven different tabs.

Each utility is built to do one job well. There is no "import account" button, no signup modal, no "buy the pro version to format more than 1KB". If you can paste it into a textarea, you can use it.

Is the data I paste here safe?

Yes. The transformation tools — JSON formatter, base64 encoder, hash generator, JWT decoder, CSV-to-JSON, YAML-to-JSON, regex tester and so on — execute as pure JavaScript inside your browser. Once the page is loaded, you can disconnect from the internet and the tool will keep working. Even fake-data generation runs locally so the synthetic identities you create never appear in any log.

How is it supported?

The site shows non-intrusive contextual ads served by Google AdSense. We do not sell user data, run popups, or place ads inside tool output panels. Read the privacy policy for the full breakdown, or the about page for the project's backstory.