Developer Tools
Handy developer utilities for formatting JSON, encoding and decoding data, generating hashes and UUIDs, testing regex and decoding JWTs — all in your browser.
JSON Formatter & Validator
Format, minify and validate JSON in real time.
Developer ToolsBase64 Encoder & Decoder
Encode text to Base64 and decode it back instantly.
Developer ToolsURL Encoder & Decoder
Percent-encode or decode any URL or query string.
Developer ToolsHash Generator (SHA-1, SHA-256, SHA-512)
Compute SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text.
Developer ToolsUUID v4 Generator
Generate random UUID v4 identifiers in bulk, instantly.
Developer ToolsUnix Timestamp Converter
Convert Unix timestamps to readable dates and back.
Developer ToolsRegex Tester
Test regular expressions live with syntax highlighting.
Developer ToolsJWT Decoder
Decode JWT header and payload locally, without sending data anywhere.
Developer ToolsCSV to JSON Converter
Convert CSV to JSON and back, with custom delimiters.
Developer ToolsZIP Extractor & Viewer
Open ZIP archives, browse contents and extract files in your browser.
Developer ToolsRAR & 7Z Viewer
Open RAR, 7Z, TAR and more — browse, preview and extract in your browser.
Developer ToolsZIP Creator
Create ZIP archives from multiple files with selective compression.
Developer ToolsDeveloper Tools — FAQ
Yes — every tool on LahbabiGuide is free to use with no sign-up, no limits and no hidden costs. They always will be.
No. All tools run entirely in your browser using JavaScript — nothing you type, paste or upload is ever sent to a server.
No installation needed. Every tool works in any modern browser on desktop, tablet or phone.