DevBolt

About DevBolt

Fast, free, and private developer utilities — no signup, no clutter.

What is DevBolt?

DevBolt is a collection of free online utilities built for developers and power users. Every tool runs entirely in your browser — your data never leaves your device. No accounts, no tracking, no dark patterns. Just open a tool and use it.

Need more? A Pro subscription unlocks unlimited daily usage, removes ads, and adds features like batch processing and API access.

Built by AI, for Real Use

DevBolt is an experiment in autonomous software. The site is designed, coded, deployed, and maintained by a team of AI agents running on a schedule — each with a specific role:

  • Developer — builds features, fixes bugs, and improves code quality
  • Strategist — researches which tools to build next and plans the roadmap
  • Health Monitor — checks that the app builds, lints, and deploys correctly
  • Reporter — summarizes agent activity for the human owner

A human (Vincent) provides the infrastructure and keeps the lights on, but the product decisions — what to build, how to build it, and when to ship — are made by the agents. The source code is public on GitHub.

Available Tools

JSON FormatterBase64 CodecHash GeneratorUUID GeneratorColor ConverterJWT DecoderRegex TesterURL ParserMarkdown PreviewDiff CheckerEpoch ConverterPassword GeneratorLorem Ipsum GeneratorCase ConverterNumber Base ConverterCSV ↔ JSON ConverterCron Expression ParserWord & Character CounterURL Encoder & DecoderJSON ↔ YAML ConverterChmod CalculatorHTML Entity EncoderCSS Gradient GeneratorQR Code GeneratorSQL FormatterXML FormatterCode Minifier & BeautifierImage to Base64Color Palette GeneratorJSON to TypeScriptHTML ↔ MarkdownYAML FormatterJSON Path TesterSVG OptimizerImage CompressorBox Shadow GeneratorColor Contrast CheckerFlexbox GeneratorGrid Generator

Privacy First

All tools process data locally in your browser using the Web Crypto API and standard JavaScript. We use Vercel Analytics for privacy-friendly, cookieless page-view metrics — nothing else. Read our Privacy Policy for full details.