JSON, Base64, regex, hashes and more. All free, all private.
Pretty-print, validate and minify JSON.
Encode text or files to Base64.
Live match highlighting and groups.
Convert JSON arrays to CSV and back.
Random v4 UUIDs, bulk and copy.
Validate with error location.
Collapsible JSON explorer.
Query JSON by dotted path.
Infer schema from JSON.
Convert JSON to YAML.
Convert YAML to JSON.
Basic YAML structure check.
Basic TOML parser.
Sections and keys to JSON.
Convert XML documents.
Pretty-print XML.
.env to JSON and back.
Interfaces from JSON.
Go structs with tags.
Dicts and dataclasses.
CREATE + INSERT statements.
INSERT values to CSV.
Uppercase keywords + indent.
Build WHERE clauses safely.
First table to CSV.
First table to Markdown.
Basic tags to Markdown.
Common Markdown to HTML.
class → className and more.
Basic comment/whitespace strip.
Indent and expand CSS.
Naive minify; use terser for prod.
Naive re-indent for reading.
Code to PNG via canvas.
Visual shadow builder.
Per-corner radius preview.
Border triangles any direction.
Try flex properties live.
Columns, rows and gap.
Linear and radial gradients.
Polygon and shape clips.
Blur, brightness, hue and more.
Easing curves with preview.
Layered text shadows.
Simple animations builder.
Color-fade headlines.
System-stack pair previews.
Modular scale table.
WCAG ratios AA/AAA.
SVG placeholders to download.
Campaign URLs with UTM tags.
Parse and rebuild ?a=b.
Every part of a URL.
SERP snippet preview.
Chars + pixel estimate.
Open Graph + Twitter tags.
Article, FAQ, Product, Local.
Alternate language tags.
Allow, disallow, sitemap.
XML sitemap from URLs.
HTTPS, www, caching rules.
RSS 2.0 feed from items.
Web app manifest JSON.
Extension to MIME type.
What each code means.
Text to data: URIs.
SVG to CSS-ready URI.
Human words for cron lines.
CRC32 of text or files.
Your browser fingerprint basics.
Live size + breakpoints.
Measure scroll px/sec.
Needs PDF library — coming soon.
Token cost by model.
CIDR mask, hosts, ranges.
Needs server helper — coming soon.
Inspect certs and keys locally.
Bits and crack-time estimate.
Latency to this site.
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