trysandbox.io logotrysandbox.io

// a sandbox of 376 sharp tools

Every little generator
you keep googling for.

QR, barcodes, bcrypt hashes for PHP, UUIDs, JWT decoders, color palettes — fast, local, no signup. Search the sandbox and start.

Readability Score Checker

Text · tool

Readability Score Checker

Flesch, grade level and more.

21.8

Flesch Reading Ease — Very difficult (graduate)

Flesch-Kincaid grade

12.7

Gunning Fog

14.7

SMOG index

12.5

Coleman-Liau

19.1

Automated Readability

13.9

Words / sentence

10.0

Words

30

Sentences

3

Syllables

62

// about the sandbox

The small utilities you need,
without the ad-walls.

Every generator runs entirely in your browser. Your inputs never leave the page — no servers, no logging, no tracking pixels. Open the tool, get the thing, close the tab.

  • 100%client-side
  • 0accounts
  • 376sharp tools
  • ∞free forever