toolbench.online

Browser-based utility library

69 ready-to-use tools with mini guides for SEO, content, and developer workflows.

Toolbench combines fast utilities with short how-to guidance, related-tool paths, and trust pages so visitors can solve the task, understand the output, and move to the next step without friction.

69 tools available now7 categoriesMini guides on every tool page

Explore by task

JSON and CSV

Convert structured records, generate types and schemas, and prepare dependable imports.

  • JSON to CSV

    Convert JSON arrays to CSV. Flatten nested objects, select output columns and choose comma, semicolon, tab or pipe delimiters.

  • CSV to JSON

    Convert comma, semicolon or tab-separated CSV to JSON. Preserve multiline quoted cells and optionally infer numbers, booleans and null.

  • JSON Unescaper

    Unescape JSON string literals and decode nested JSON strings into readable text or formatted JSON. Copy or download the result.

  • JSON to TypeScript

    Generate nested TypeScript interfaces from example JSON. Name the root interface, infer array unions and choose optional fields.

  • JSON Schema Generator

    Generate JSON Schema from example JSON using Draft 2020-12 or Draft 7. Inspect inferred types and configure required or optional fields.

  • CSV to SQL

    Generate SQL INSERT statements from CSV. Choose a SQL dialect, quote identifiers and strings, and control NULL and type inference.

  • CSV Delimiter Converter

    Convert semicolon CSV to comma, tab or pipe separators while preserving quoted delimiters, escaped quotes and multiline cells.

  • HTML Table to CSV

    Convert an HTML table to CSV. Select a table, choose delimiters and control rowspan and colspan with repeated or blank covered cells.

Convert nested JSON to CSV without losing fields

Prepare CSV for SQL INSERT

API debugging

Inspect payload changes and query parameters, then turn captured requests into working code.

  • JSON Compare Online

    Compare two JSON documents and see added, removed, and changed values. Free JSON diff tool with array-order options and copyable output.

  • JSON Formatter

    Format and prettify JSON or minify it for compact use. Validates syntax on the fly.

  • JWT Decoder

    Decode JWT header and payload safely in the browser.

  • URL and Query String Parser

    Parse full URLs or query strings and inspect decoded values. Preserve repeated query parameters, plus signs and empty values.

  • cURL to Python Requests

    Convert a cURL request to Python requests code with headers, body and basic authentication. Redact common secrets before sharing.

  • cURL to JavaScript Fetch

    Convert cURL commands to JavaScript fetch code for browsers or Node.js. Preserve request headers and bodies with optional secret redaction.

Turn a browser request into Python or JavaScript

Text cleanup

Clean pasted lists, keep their original order and join wrapped text without losing paragraphs.

  • Remove Duplicate Lines

    Remove duplicate lines while keeping their original order. Choose case-sensitive matching and trimming, and see how many lines were removed.

  • Line Operations

    Remove line breaks from PDF-pasted text while keeping paragraph boundaries. Also trim, sort, reverse, number and deduplicate lines.

  • Alphabetical Line Sorter

    Sort lines alphabetically in either direction. Ignore case, trim whitespace and use natural-number sorting for item2 before item10.

  • HTML to Plain Text

    Convert HTML to plain text with paragraph breaks and configurable link handling. Remove scripts and styles and decode HTML entities.

Clean a pasted list while preserving its order

IDs and scheduling

Generate sortable identifiers, inspect embedded time and check when a Unix cron schedule runs.

  • UUID v7 Generator

    Generate UUID v7 identifiers in batches, download the results and inspect the embedded creation timestamp in UTC.

  • ULID Generator and Decoder

    Generate up to 500 ULIDs, download batches and decode their creation timestamp. Browser-based sortable identifier tool.

  • UUID Validator

    Validate UUIDs and detect version (v1–v5) and variant. Supports batch input.

  • Unix Timestamp Converter

    Convert Unix timestamps in seconds or milliseconds to UTC, ISO and local dates. Detect 13-digit timestamps or choose units explicitly.

  • Cron Expression Parser

    Validate five-field Unix cron expressions and preview the next five runs in an IANA timezone, including daylight saving time.

UUID v4 vs UUID v7 vs ULID: choosing an identifier

Starter tools

Browse all tools

Remove Duplicate Lines

Remove duplicate lines and normalize whitespace.

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JSON Compare Online

Compare two JSON blobs with structural diff.

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JSON to CSV

Convert a JSON array of objects to CSV.

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CSV to JSON

Convert CSV data to a JSON array of objects.

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Cron Expression Parser

Preview five-field Unix cron schedules in an IANA timezone.

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Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back.

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UUID v7 Generator

Generate sortable UUID v7 values in bulk.

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HTML to Plain Text

Strip HTML tags and extract plain text.

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How Toolbench works

The site is designed to be useful even when you arrive for a single task: use the tool, scan the mini guide, then follow the next most relevant internal link.

Use a focused tool

Every page centers the interactive utility first so you can get an answer quickly.

Scan the mini guide

Each tool page explains what the tool is good for, how to use it, and what a typical result looks like.

Follow the next workflow step

Related links connect SEO, publishing, cleanup, and debugging tasks into clear internal paths.

Featured workflows

These grouped paths turn one-off utilities into repeatable publishing and debugging workflows.

See common questions

SEO publishing workflow

Move from page naming to metadata, campaign links, crawl rules, and sitemap delivery in one pass.

API debugging workflow

Inspect tokens, compare payloads, and convert between common transport formats without leaving the browser.

Content cleanup workflow

Clean pasted copy, normalize lists, format output, and prep content for publishing or migration work.

Identity and security workflow

Generate IDs, passwords, and signed output for backend testing, staging data, and auth support work.

Popular tool clusters

Explore category pages when you want adjacent tools for the same type of work, not just one isolated utility.

Text

Manipulate, clean, analyze, and transform text content.

Hash & Security

Generate hash digests and analyze password security.

Converters

Convert between units, formats, and data structures.

ID Generators

Generate and validate IDs and reference tokens.

Developer

Developer utilities for code, APIs, and data inspection.