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HTTP Request Builder

Generate curl, PHP, fetch, Node, Python snippets.

125 uses Developer

JSON ↔ YAML Converter

Convert JSON and YAML in your browser.

130 uses Developer

JWT Generator

Sign HS256/384/512 JWTs in the browser.

123 uses Developer

JSON Schema Validator

Validate JSON against a JSON Schema.

133 uses Developer

GraphQL Formatter

Format or minify GraphQL queries.

129 uses Developer

SQL ↔ JSON Converter

JSON rows ↔ INSERT statements.

128 uses Developer

.env Parser

Convert .env ↔ JSON with secret masking.

156 uses Developer

Flexbox Generator

Visual CSS flexbox playground.

132 uses Developer

CSS Grid Generator

Build CSS Grid layouts visually.

122 uses Developer

Google Ads URL Builder

Build Google Ads tracked URLs.

147 uses Marketing

Meta Ads URL Builder

Build Facebook/Instagram campaign URLs.

150 uses Marketing

UTM URL Analyzer

Parse and strip UTM parameters.

150 uses Marketing

QR Campaign Generator

UTM URL + QR for campaigns.

175 uses Marketing

Email Signature Generator

Create HTML email signatures.

172 uses Marketing

Social Image Resizer

Resize for social platform presets.

149 uses Marketing

Social Character Counter

Platform caption length guidance.

154 uses Marketing

Hashtag Generator

Local hashtag suggestions from a keyword.

164 uses Marketing

YouTube Embed Generator

Build responsive YouTube iframe embeds.

169 uses Marketing

Facebook Post Preview

Approximate Facebook post mockup.

160 uses Marketing

Instagram Post Preview

Approximate Instagram feed mockup.

158 uses Marketing

LinkedIn Post Preview

Approximate LinkedIn feed mockup.

152 uses Marketing

X Post Preview

Approximate X/Twitter post mockup.

149 uses Marketing

Email Subject Line Tester

Analyze subject lines for common issues.

166 uses Marketing

Email Preheader Preview

Inbox subject + preheader preview.

173 uses Marketing

Click-to-Call Generator

Create tel: links and QR codes.