All Developer & Security Tools
Every tool below uses its exact name — open any card for how-to steps, FAQ, and a dedicated SEO page.
Free Privacy Policy Generator
Free Privacy Policy Generator for websites and apps — guided wizard with GDPR, CCPA, and CalOPPA options, plus Google/Facebook/Firebase disclosures. Download HTML or TXT. No signup. On our serverFree Terms and Conditions Generator
Free Terms and Conditions generator for websites, apps, online stores, SaaS and marketplaces — 16 business types, 50+ clauses (refunds, subscriptions, user content, AI, arbitration, EU consumer rights). Download HTML, Markdown or TXT. No signup. On our serverRandom Key Generator
Free secure password & key generator — Fort Knox, WPA, hex keys, PINs, API tokens, and UUIDs. Made in your browser with Web Crypto. In your browserHash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 of text or files. In your browserPassword Generator
Create strong random passwords with length and charset controls. In your browserBase64 Encode/Decode
Encode or decode text with Base64. In your browserHex ↔ Base64 Converter
Convert hex strings to Base64 and Base64 back to hex. Accepts spaces, 0x prefixes, and commas. In your browserURL Encode/Decode
Percent-encode or decode URL components safely. In your browserJSON Formatter
Pretty-print or minify JSON with validation. In your browserUUID Generator
Generate UUID v4 identifiers. In your browserJWT Decoder
Decode JWT header & payload (Base64URL). Decode only — signature is never treated as verified. In your browserText Diff / Compare
Compare two texts with unified, context, or ndiff output (difflib). In your browserIs My IP Safe?
Check if your public IP looks safe — proxy signals, local/private ranges, and privacy tips. No signup required. On our serverText to Emoji Encrypt — Password Cipher
Encrypt secret text into emojis with a password, then decrypt later. Free AES-256-GCM text to emoji cipher — stronger than Txtmoji-style toys. No signup. In your browserEmoji Letters Generator — Fancy Unicode Fonts
Convert text into emoji letters and fancy Unicode fonts for Instagram, TikTok, Discord, PUBG nicknames, and bios. Free LingoJam-style generator with more styles. In your browserGradient Text Name — Color Name Generator
Make a gradient color name for Instagram, Discord, websites, and stickers. Live preview, copy HTML/CSS/SVG, download PNG — free, no lag, no signup. In your browserPassword Strength Meter
Local entropy/rules score with actionable suggestions. Nothing is stored. In your browserRegex Tester
Test a pattern against a string with flags, groups, and a ReDoS timeout guard. In your browserJSON ↔ CSV
Convert JSON arrays/objects to CSV and CSV back to JSON. In your browserJSON ↔ YAML
Convert JSON to YAML and YAML to JSON in your browser — safe YAML 1.2 core schema. In your browserCron Explainer
Turn a 5-field cron expression into human-readable text (common forms). In your browserSecrets / .env Redactor
Paste logs or .env text — mask API keys, tokens, JWTs, and password assignments. In your browserOpenAPI / API Schema Inspector
Paste an OpenAPI 3.x JSON or YAML document — validate structure, explore paths and operations, inspect parameters and responses, then export a Markdown or JSON report. Runs in your browser. In your browserAPI Schema Diff (OpenAPI)
Compare two OpenAPI documents for added/removed endpoints, parameter and response changes, and heuristic breaking vs compatible notes. Browser-local. In your browserAPI Request Builder
Build an HTTP request (method, URL, query, headers, body), copy as cURL, and optionally send it from this browser (CORS applies). Fah Swe never proxies the call — your browser talks to the destination. In your browserJSON Schema Validator
Validate a JSON instance against a JSON Schema (draft-07 subset: type, required, properties, items, enum, min/max, pattern). Runs in your browser — $ref is not followed. In your browserNo tool in this category matches.
About Developer & Security Tools
Fah Swe Security & Text tools cover day-to-day developer and privacy tasks: encrypt text to emojis with a password (AES-256-GCM), generate emoji / fancy Unicode letters for social bios, draft a privacy policy, generate Fort Knox–style keys, decode JWTs, compare text, test regex safely, score password strength, convert JSON↔CSV/YAML, explain cron, redact secrets, fingerprint files with SHA-256, and create UUID v4 IDs. Built for speed with clear limits and no permanent logging of secrets.
How it works
- Choose a Security tool (Text to Emoji, Emoji Letters, Privacy Policy, Key Generator, JWT, Diff, Regex, and more).
- Paste text or upload a file where hashing a file is needed.
- Run the tool and copy the result from the page.
- Generated secrets and pasted text are never stored — they exist only in the response.
FAQ
Is hashing the same as encryption?
No. Hashes are one-way fingerprints. They verify integrity; they do not hide data for later decryption.
Do you store generated passwords?
Never. Passwords are generated and returned once in the API response.
What is Text to Emoji Encrypt?
A free password emoji cipher: encrypt secret text into emojis with AES-256-GCM, then decrypt later — stronger than toy Txtmoji-style tools.
What is Emoji Letters?
A free Unicode letter generator for Instagram, TikTok, Discord, and gaming nicknames — regional, squared, circled, bold, and more.
Can I hash a file?
Yes — use the Hash tool with a file upload where supported.
Are these tools for learning only?
They are practical utilities for developers and power users. Follow secure practices when handling real secrets.