ByteBench

Private browser utilities

ByteBench Developer Tools

Fast, focused browser tools for formatting, encoding, validation, text cleanup, identifiers, time conversion, frontend color work, tokens, passwords, and everyday debugging. Tool input stays on your device.

> bytebench.dev
privacy: input stays local
tools: format, encode, compare, convert
speed: opens quickly, works cleanly
status: ready when you need it

Most used tools in ByteBench Developer Tools

Base64 Decode and Encode

Encode and decode Base64 and Base64URL strings locally.

JWT Decoder

Decode JWT headers and payloads locally, then verify HS, RS, and ES signatures with provided secrets or keys.

Org Chart Builder

Build an organization chart from CSV or XLSX files locally and export the result as PNG or JPG.

Hash Generator

Generate MD5, SHA-1, SHA-2, and CRC32 values locally.

HTML Formatter

Beautify, minify, and inspect HTML locally in your browser.

HTML Minifier

Minify HTML locally by collapsing whitespace and removing unnecessary gaps between tags.

CSS Minifier

Minify CSS locally by removing comments and unnecessary whitespace.

URL Parser

Parse full URLs into protocol, host, path, query, and hash parts locally.

JSON Diff

Compare two JSON values locally with optional key sorting for cleaner diffs.

JSON to CSV Converter

Convert arrays of JSON objects into CSV locally in your browser.

CSV to JSON Converter

Convert header-based CSV into JSON rows locally in your browser.

Markdown Preview

Write Markdown locally and preview the rendered result side by side.

QR Code Generator

Generate QR codes locally and export SVG or PNG files for links and text payloads.

Contrast Checker

Compare foreground and background colors locally and review WCAG contrast guidance.

Remove Duplicate Lines

Remove repeated lines locally while keeping the first occurrence order.

Whitespace Cleaner

Trim lines, normalize spacing, and collapse repeated blank lines locally.

Number Base Converter

Convert numbers between binary, decimal, and hexadecimal locally.

IP Address Validator

Validate IPv4 and IPv6 addresses locally in your browser.

Word and Character Counter

Count words, characters, lines, paragraphs, and bytes locally.

Password Strength Checker

Evaluate password strength locally with length, variety, and pattern checks.

JSON Formatter

Format, beautify, minify, and validate JSON locally in your browser.

UUID Generator

Generate UUID v4 values in bulk using browser crypto APIs.

Regex Tester

Test regular expressions against sample text with flags and match details.

URL Encoder and Decoder

Encode and decode URLs, query strings, and percent-encoded text.

Unix Timestamp Converter

Convert Unix timestamps to dates and dates to epoch seconds or milliseconds.

Case Converter

Convert text between uppercase, lowercase, title case, sentence case, camelCase, snake_case, and kebab-case.

Text Diff Checker

Compare two text blocks and show line-level differences locally.

JSON Schema Validator

Validate JSON data against common JSON Schema rules locally.

YAML Validator

Validate common YAML snippets and preview normalized JSON locally.

OpenAPI Validator

Validate core OpenAPI document structure for JSON or YAML specs.

Sitemap Validator

Validate sitemap.xml structure, URLs, and common metadata locally.

Robots.txt Validator

Validate robots.txt syntax and preview crawler directives locally.

Cron Expression Validator

Validate five-field cron expressions and explain the schedule.

Hash and Checksum Validator

Compare text or uploaded files against expected MD5, SHA, or CRC32 values locally.

Message Encrypt and Decrypt

Encrypt and decrypt messages locally with RSA-OAEP public/private PEM keys.

Browse ByteBench Developer Tools by category

Encoding Tools

Encode, decode, and inspect developer data formats without uploading input.

7 tools

Formatters

Format, validate, convert, and clean structured data for day-to-day engineering work.

14 tools

Text Tools

Transform, compare, and prepare text for code, content, URLs, and documentation.

8 tools

IDs and Time

Generate identifiers and convert dates, timestamps, and time zones in the browser.

4 tools

Security Tools

Security-adjacent browser utilities built with local processing and careful wording.

7 tools

Frontend Tools

Practical color and UI helpers for frontend developers and designers.

6 tools

Workflow clusters for ByteBench Developer Tools

JSON Developer Tools Cluster

Use this JSON cluster for formatting, validating, diffing, and converting JSON during API and config workflows.

JWT and Token Verification Cluster

Use this JWT cluster for decoding tokens, checking claims, and verifying signatures with HS, RS, and ES algorithms.

Regex Testing and Validation Cluster

Use this regex cluster for pattern testing, edge-case validation, and practical regex debugging workflows.

Timestamp and Time Zone Cluster

Use this timestamp cluster for epoch conversion, timezone translation, and date-time debugging workflows.

Guides and playbooks for ByteBench Developer Tools

JSON Formatting and Validation Guide

A practical workflow for formatting, validating, diffing, and converting JSON safely during development and review.

JWT Debugging and Verification Guide

A clear process for decoding JWTs, verifying HS/RS/ES signatures, and avoiding trust mistakes in auth workflows.

Regex Testing and Debugging Guide

A practical approach to writing, testing, and reviewing regular expressions without overfitting patterns.

UUID and ID Generation Guide

Best practices for generating IDs, selecting formats, and avoiding collisions or semantic misuse in application workflows.

Timestamp and Time Zone Conversion Guide

A practical guide to converting epoch values, handling time zones, and preventing date/time bugs in production systems.

What Is JSON?

A quick developer guide to what JSON is, why it is used everywhere, and what makes it valid.

JSON vs YAML

Compare JSON and YAML for APIs, config files, and developer workflows without hand-wavy tradeoffs.

Common JSON Errors

A debugging checklist for the JSON syntax and structure mistakes developers hit most often.

How to Format JSON

A step-by-step process to format JSON for review, debugging, and safer team handoff.

What Is JWT?

Understand what JWT is, what it contains, and how it fits into modern auth systems.

JWT Security Risks

Common JWT implementation risks and how to avoid auth vulnerabilities in production systems.

JWT vs Session Cookies

A practical comparison of JWT and session cookie approaches for web authentication.

JWT Header, Payload, Signature Explained

Break down each JWT part and learn what can be trusted at each verification step.

Regex Cheatsheet

A practical regex cheatsheet focused on day-to-day developer patterns, flags, and pitfalls.

Regex Email Validation

How to validate email-like input with regex pragmatically without overpromising RFC-perfect checks.

Regex Performance

Prevent slow regex patterns and catastrophic backtracking in real applications.

Org Chart Builder and Compliance Guide

A practical guide to maintaining org charts for ownership clarity, audit readiness, and SOC 2 and ISO-aligned governance.

All guides

Read workflows for JSON, JWT, regex, IDs, org chart governance, and time handling.

Why ByteBench Developer Tools is built for everyday utility work

ByteBench keeps the tool first, keeps your input local, and avoids accounts, pop-ups, and distracting page furniture. Open a tool, paste your text, validate or transform the result, and get back to the work you were doing.