Free Developer Tools for JSON, Base64, Regex, Hashes and Timestamps
Handle common developer chores without uploading payloads to a server. Toolflix connects local browser tools for JSON formatting, encoding, regex testing, hashing, timestamps, cron expressions and diffs.
Workflow
Finish everyday dev checks in one no-upload toolbox
This page creates one broad organic search surface for developer intent and routes visitors into existing Toolflix tools. It changes no tool behavior.
Clean the payload
Format JSON, decode Base64 fields, encode URLs and escape HTML before pasting a snippet into docs or a ticket.
Open JSON Formatter →2Verify the logic
Test regex patterns, compare before/after output and generate hashes for reproducible checks.
Test a Regex →3Check time and schedules
Convert Unix timestamps, inspect ISO dates and build cron expressions without leaving the browser.
Convert a Timestamp →Tool comparison
Pick the right helper for the developer task
JSON Formatter & Validator
Beautify, validate, tree-view and minify JSON payloads.
Open tool →Base64 Encoder & Decoder
Encode and decode tokens, file snippets and data URI strings.
Open tool →URL Encoder & Decoder
Encode query strings and decode callback URLs.
Open tool →Regex Tester
Check patterns, capture groups and replacement rules.
Open tool →Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.
Open tool →Timestamp Converter
Convert epoch seconds, milliseconds, UTC and ISO dates.
Open tool →Cron Expression Generator
Build schedules and preview human-readable cron expressions.
Open tool →Text Diff Checker
Compare payloads, configs, logs or copied output side by side.
Open tool →API response cleanup
Format JSON, decode fields, compare payloads and inspect timestamps before sharing a debugging note.
Encoding and signature checks
Encode URLs, decode Base64, generate hashes and escape HTML snippets locally.
Log and schedule checks
Convert timestamps, test cron expressions and verify text patterns without a backend service.
Frequently Asked Questions
Are these developer tools free?
Yes. The linked Toolflix tools are free, require no account and run directly in your browser.
Do Toolflix developer tools upload my code or payloads?
No. Formatting, encoding, decoding, hashing, regex tests and diffs happen locally in the browser.
How is this different from the API debugging page?
The API debugging page focuses on API response problems. This developer tools page is broader and also covers hashes, cron expressions, timestamps, regex checks and everyday dev utilities.
Which developer tool should I start with?
Start with JSON Formatter for structured payloads, Base64 or URL Encoder for encoded values, Regex Tester for patterns, and Timestamp Converter for logs.