In development. RVNT is pre-release — not yet security-audited. Source code, public builds, and the iOS / App Store release aren’t available yet. See the roadmap →

RVNT Tools

Free tools that respect your privacy

Converters, generators, and developer utilities that run entirely in your browser — nothing you enter is ever uploaded, tracked, or stored. No accounts, no ads, no nonsense.

PDF & Documents

Edit, merge, split and build PDFs right on your phone — files never leave the page.

Developer

Format, encode, decode, generate and inspect — the everyday dev staples.

JSON Formatter Format, validate & minify JSON. Base64 Encoder / Decoder Encode & decode Base64, Unicode-safe. URL Encoder / Decoder Percent-encode & decode URLs. UUID Generator Random v4 UUIDs, in bulk. Timestamp Converter Unix epoch ↔ human date. Regex Tester Test patterns, see live matches. HTML Entity Encoder / Decoder Escape & unescape HTML safely. Diff Checker Compare two texts, line by line. CSV ↔ JSON Converter CSV to JSON and back, both ways. Cron Expression Explainer Decode a cron schedule, in plain English. QR Code Generator Make a QR code — no tracking, no expiry. IP Subnet Calculator CIDR → network, range, mask & hosts. CSS Box Shadow Generator Design a shadow, copy the CSS. JSON to TypeScript Generate interfaces from JSON. Meta Tags Generator SEO, Open Graph & Twitter tags. JSON to YAML Converter Convert JSON ↔ YAML, both ways. Crontab Builder Build a cron expression visually. Markdown Table Generator Build tables, export Markdown/CSV/HTML. URL Parser Break a URL into its parts. SQL Formatter Beautify & indent SQL queries. CSS Minifier Shrink CSS — strip comments & space. HTML Minifier Collapse HTML whitespace & comments. Hex Viewer Hex dump of text or a file. JSON to CSV Convert JSON arrays to CSV. .gitignore Generator Build a .gitignore from your stack. CSS clamp() Generator Fluid font sizes with clamp(). JWT Signature Verifier Verify a JWT's HMAC signature & claims. Caesar & Vigenère Cipher ROT13, Caesar, Atbash & Vigenère. ULID Generator Sortable, unique IDs (ULID). File Type Detector Identify a file by its magic bytes. Base32 Encoder / Decoder RFC 4648 Base32, both ways. User-Agent Parser Decode a User-Agent string.

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