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DollarMates
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Delta — your everyday dev toolbox.

96 fast utilities that run entirely in your browser. Format, convert, encode, hash and generate — your data is never uploaded.

Open Delta free, no sign-up Browse the toolbox

No sign-up. No account. Nothing to install. Open a tool and it just works.

Delta 96 TOOLS
Input
{"amount":1250,"currency":"AUD"}
JSON Formatter
{
"amount": 1250,
"currency": "AUD"
}
Processed on this device — never uploaded
Runs in your browserEvery tool is client-side JavaScript. There is no server to send your data to.
No sign-upNo account, no email, no paywall on the useful half. Open a tool and start.
Never uploadedPaste a token, a key or a customer record — it stays on your machine.
What's inside

96 tools, grouped by the job.

The utilities developers reach for a dozen times a day — without the ad walls, the sign-up gates, or the quiet upload of whatever you pasted.

Formatters

Pretty-print and validate the formats you paste all day.

  • JSON Formatter
  • SQL Formatter
  • XML Formatter
  • YAML Formatter

Converters

Move data between formats without a round trip to a server.

  • JSON ↔ YAML
  • JSON ↔ CSV
  • JSON → TypeScript
  • JSON → Go Struct
  • Number Base Converter

Encoders & Decoders

Encode, decode and inspect payloads in place.

  • Base64
  • URL Encode
  • HTML Entities
  • JWT Decoder
  • Hex ↔ Text

Generators

Identifiers, placeholders and codes on demand.

  • UUID
  • ULID
  • NanoID
  • Password Generator
  • QR Code Generator
  • Lorem Ipsum

Crypto & Security

Hashes, keys and tokens computed locally by WebCrypto.

  • SHA-256 Hash
  • HMAC
  • AES-256-GCM
  • TOTP / 2FA
  • RSA Key Pair
  • Bcrypt
  • Passkey Playground

Text

Reshape, compare and measure text.

  • Case Converter
  • Slugify
  • Text Diff
  • Regex Tester
  • Word Counter
  • Sort & Dedupe

Web & Frontend

Colour, CSS and layout maths.

  • Colour Converter
  • Contrast Checker
  • CSS Gradient
  • Box-Shadow
  • clip-path
  • px ↔ rem

Data & Dev

Look things up and diff the data you are debugging.

  • HTTP Status Lookup
  • JSONPath
  • JSON Diff
  • JSON Schema Validator
  • MIME Types
  • User-Agent Parser

Network & DNS

Answer network questions straight from the browser.

  • DNS Lookup
  • Subnet / CIDR Calculator
  • My IP Address

Images, Media & PDF

Resize, convert and clean files without uploading them.

  • Image → Base64
  • Image Resizer
  • Format Converter
  • EXIF Viewer
  • PDF Organiser
  • PDF Compressor

Time & Date

Timestamps, schedules and time zones.

  • Unix Timestamp
  • Cron Parser
  • Duration Converter
  • Time Zone Converter
  • World Clock

DevOps, AI & Playgrounds

The rest of the toolbox, from scaffolding to token counting.

  • .gitignore Generator
  • Dockerfile Generator
  • chmod Calculator
  • LLM Token Counter
  • Mermaid Editor
  • Markdown Preview
See all 96 tools on tools.dollarmates.com
Why we built it

The same standard as everything else we ship.

Most online dev tools quietly post your input to a server. That is fine for a lorem ipsum generator and a genuine problem for a JWT, an API key, or a customer export. Delta was built the way we build U2 Secured — assume the data is sensitive, and keep it on the user's device.

Try it — nothing to sign up for.

96 tools, free, in your browser. If something you need is missing, tell us and we'll look at building it.

Open Delta Request a tool