Developer tools
Fast browser-first utilities for everyday debugging.
ToolsNHelpers brings common developer tasks into one local-first workspace: format data, convert encodings, generate secure values, inspect timestamps, decode certificates, parse HTTP details, and compare text without installing separate utilities.
Built For Practical Development Work
Each tool is designed around a focused workflow with clear inputs, visible outputs, and copy or download actions where they are useful. The collection is meant for debugging API payloads, preparing test data, checking cryptographic values, documenting examples, and validating text formats during day-to-day software work.
Privacy-Aware By Default
Most utilities run in the browser, so pasted snippets and generated values stay on your device unless a feature explicitly needs a server or third-party service. Tool pages include privacy labels and short notes to explain how each utility handles your input.
Focused Tool Categories
The collection is grouped by task type so users can move quickly between related workflows: formatting and conversion, encoding and decoding, text inspection, cryptographic helpers, generators, HTTP diagnostics, and time or data conversion. Each page includes a working tool plus notes about practical usage and limitations.
Designed For Reviewable Output
Tools keep inputs and outputs visible side by side where useful, report validation errors in context, and provide copy or download actions for generated values. This makes the pages useful for debugging and documentation while avoiding hidden processing or misleading results.
Maintained Site Pages
The About, Privacy Policy, Contact, and Editorial Policy pages explain who the site is for, how information is handled, how advertising is placed, and how corrections can be requested. These pages are linked from the main navigation and footer so users do not have to hunt for them.
Beyond the output
Understand the failure, not just the format
Our field guides explain practical debugging workflows, trust boundaries, standards, and the checks to perform in the system that ultimately consumes your data.
Format & Convert
Format structured data, move between common interchange formats, and make copied payloads easier to inspect before they go into documentation, APIs, or configuration files.
Encode / Decode
Work with transport encodings, signatures, tokens, and escaped text while keeping the source value visible for review.
Text
Test regular expressions and compare text changes directly in the browser for quick debugging and support workflows.
Crypto
Generate and inspect hashes, signatures, certificates, keys, and password hashes for development and verification tasks.
Generators
Create local test values, placeholder material, QR codes, and sample records for prototypes, QA, and documentation.
Time & Data
Convert timestamps, timezones, byte sizes, number bases, and cron expressions with notes about units and runtime differences.