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Ashok Vavare
Ashok Vavare

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DevToolStack: Free Browser-Based Tools for Backend, API, SQL, and Debugging Workflows

#webdev #programming #productivity #api

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Developers spend a lot of time on small debugging tasks that are not really the main work.

You are trying to fix an API issue, but first you need to decode a token. You are checking a database bug, but first you need to format a messy SQL query. You are reviewing an integration, but first you need to parse a long callback URL, inspect a redirect chain, convert a timestamp, or beautify a payload from logs.

Each task is small. The friction comes from doing them again and again across different websites, scripts, browser tabs, editor plugins, and command-line snippets.

That is why I built DevToolStack.

DevToolStack is a free collection of browser-based developer tools for SQL, APIs, encoders, parsers, formatters, timestamps, hashes, and backend debugging workflows.

Main site:

https://www.devtoolstack.in/

The idea is simple: fast tools, focused pages, direct URLs, no login, and a compact UI that gets you to the input/output area quickly.

What makes DevToolStack different?

There are many individual formatter, encoder, and debugging utilities online. DevToolStack is different because it is designed around the full developer workflow rather than one isolated task.

1. The tools are grouped around real debugging flows

A backend issue often touches multiple formats and layers:

  • an API request
  • a URL or redirect
  • a token
  • a timestamp
  • a SQL query
  • a payload
  • a hash or encoded value
  • a database connection string

DevToolStack keeps these related tools close together so you can move naturally between them.

For example:

  • Use cURL to Fetch Converter to turn API docs into browser-ready code.
  • Use JSON Formatter to inspect the response payload.
  • Use JWT Decoder if the request has an auth token.
  • Use URL Parser if a callback URL breaks.
  • Use Redirect Checker if the request is being forwarded unexpectedly.

2. Every tool has a direct, bookmarkable URL

Each tool has its own focused page:

This makes it easy to save the exact tool you need, share it in a ticket, or link it in internal docs.

3. No login, no setup, no heavy workflow

Most DevToolStack tools are designed to run directly in the browser. The common workflow is:

  1. Paste input
  2. Run the tool
  3. Copy or download the result
  4. Move on

That matters when you are debugging quickly, helping someone on a call, working from a restricted machine, or just checking something before writing code.

4. Compact UI instead of oversized landing pages

A lot of tools waste the first screen with huge headings, banners, and marketing blocks. DevToolStack is intentionally compact. The important part is the tool itself: input, output, actions, and clear feedback.

Most pages include quick trust signals like:

  • No login
  • Runs in browser
  • Copy/download output

The goal is to reduce the time between opening a page and getting useful output.

Tool highlights

SQL and database tools

SQL Formatter

https://www.devtoolstack.in/sql-formatter/

The SQL Formatter helps clean messy SQL and PL/SQL scripts so they are easier to read, review, and debug.

Useful for:

  • formatting long SELECT queries
  • reviewing joins and filters
  • cleaning migration scripts
  • preparing SQL snippets for documentation
  • formatting decoded or legacy stored logic

This is especially helpful when SQL comes from logs, tickets, chat messages, or exported files.

JDBC URL Parser and Builder

https://www.devtoolstack.in/jdbc-url-parser/

JDBC connection strings can be hard to read when they include hosts, ports, database names, service names, and query parameters. This tool parses the URL into readable parts and helps build cleaner connection strings.

Useful for:

  • checking wrong host or port values
  • inspecting connection parameters
  • comparing database URLs between environments
  • preparing Java application configuration

DDL Extractor

https://www.devtoolstack.in/ddl-extractor/

Large schema scripts often contain many objects in one file. The DDL Extractor splits object definitions so they are easier to inspect.

Useful for:

  • reviewing CREATE TABLE scripts
  • splitting indexes, views, triggers, packages, procedures, and functions
  • preparing database migration notes
  • isolating one object from a large schema dump

Explain Plan Visualizer

https://www.devtoolstack.in/explain-plan-visualizer/

Explain plans can be dense and difficult to scan. This tool helps turn plan text into a more readable structure for review.

Useful for:

  • understanding query execution steps
  • reviewing plan operations
  • sharing plan summaries with teammates
  • debugging performance issues

PL/SQL Dependency Extractor

https://www.devtoolstack.in/plsql-dependency-extractor/

This tool helps scan PL/SQL scripts for dependency clues such as table names, package calls, procedure calls, dynamic SQL, and other references.

Useful for:

  • migration planning
  • impact analysis
  • documentation
  • code review
  • support investigations

API and web debugging tools

Redirect Checker

https://www.devtoolstack.in/redirect-checker/

Redirect bugs are common in login flows, canonical domains, CDN rules, proxy configuration, and HTTP-to-HTTPS migration work.

The Redirect Checker helps inspect:

  • each redirect hop
  • status codes
  • final destination
  • redirect loops
  • canonical URL behavior

Instead of only seeing where a URL finally lands, you can understand the full redirect chain.

cURL to Fetch Converter

https://www.devtoolstack.in/curl-to-fetch/

API documentation often gives examples in cURL, but frontend debugging usually needs JavaScript fetch code.

This tool converts cURL commands into browser-ready fetch snippets.

Useful for:

  • translating API docs into frontend examples
  • preserving headers and body payloads
  • handling POST, PUT, PATCH, and GET examples
  • debugging auth and content-type issues
  • converting header-only checks like curl -I

URL Parser and Query Params Viewer

https://www.devtoolstack.in/url-parser/

Long URLs become painful when they contain nested redirect targets, UTM parameters, encoded values, fragments, repeated keys, or callback URLs.

The URL Parser splits a full URL into readable parts:

  • protocol
  • host
  • path
  • fragment
  • query parameters
  • decoded values
  • structured JSON output

This is useful for OAuth callbacks, analytics links, deep links, and API request debugging.

URL Encoder / Decoder

https://www.devtoolstack.in/url-encoder-decoder/

URL encoding bugs are small but painful. A missing encoded ampersand or slash can break a redirect, corrupt a query parameter, or change how a server interprets a request.

This tool helps encode and decode URL values quickly.

Useful for:

  • encoding redirect URLs
  • decoding server logs
  • fixing query strings
  • inspecting webhook callbacks
  • debugging nested URL parameters

User-Agent Parser

https://www.devtoolstack.in/user-agent-parser/

User-agent strings are hard to read manually. This tool parses them into readable browser, device, platform, and engine details.

Useful for:

  • support tickets
  • browser-specific bugs
  • analytics inspection
  • debugging device-specific behavior

Payload and data formatting tools

JSON Formatter

https://www.devtoolstack.in/jsonformatter/

JSON shows up everywhere: API responses, logs, configs, queues, webhooks, browser storage, and test fixtures.

The JSON Formatter helps:

  • format JSON
  • validate JSON
  • minify JSON
  • copy formatted output
  • download JSON files

This is one of the most common tools during API debugging.

XML Formatter

https://www.devtoolstack.in/xml-formatter/

Even if your current stack mostly uses JSON, XML still appears in SOAP integrations, vendor feeds, config files, identity systems, and enterprise workflows.

The XML Formatter helps format:

  • SOAP payloads
  • XML config files
  • vendor XML feeds
  • namespace-heavy documents
  • compressed XML from logs

It also helps make SOAP faults and nested XML easier to inspect.

YAML Formatter

https://www.devtoolstack.in/yaml-formatter/

YAML is common in CI/CD, infrastructure, Kubernetes, deployment files, and application configuration.

The YAML Formatter helps normalize indentation and make config files easier to review.

Useful for:

  • deployment configuration
  • CI pipeline files
  • infrastructure snippets
  • config review before commits

Encoding, token, and verification tools

JWT Decoder

https://www.devtoolstack.in/jwt-decoder/

JWT debugging often starts with simply inspecting the token.

The JWT Decoder helps read:

  • header
  • payload
  • claims
  • expiry values
  • issued-at values
  • audience and issuer fields

It is useful during auth debugging, token inspection, and API troubleshooting.

Base64 Encoder / Decoder

https://www.devtoolstack.in/base64-tool/

Base64 appears in API payloads, headers, tokens, images, config values, and debugging logs.

This tool helps encode plain text to Base64 and decode Base64 back into readable text.

Useful for:

  • API debugging
  • header inspection
  • encoded payload fragments
  • quick validation of Base64 strings

Hash Generator

https://www.devtoolstack.in/hash-generator/

Hashes are useful for checksums, verification, debugging, and comparing values.

The Hash Generator can create common digests such as:

  • MD5
  • SHA-1
  • SHA-256

Useful for quick verification, test data, and support workflows.

UUID Generator and Validator

https://www.devtoolstack.in/uuid-generator/

UUIDs are used everywhere in APIs, databases, logs, and distributed systems.

This tool helps generate and validate UUID values quickly.

Useful for:

  • test data
  • request IDs
  • correlation IDs
  • database keys
  • log tracing

Time, scheduling, regex, and system utilities

Timestamp Converter

https://www.devtoolstack.in/timestamp-converter/

Timestamps are often copied from logs, API responses, databases, or monitoring dashboards.

This tool converts between:

  • Unix timestamps
  • ISO dates
  • local time values
  • UTC-oriented debugging values

Useful when you need to understand what happened and when.

Cron Parser

https://www.devtoolstack.in/cron-parser/

Cron expressions are compact but not always easy to read.

The Cron Parser helps explain schedules in human-readable language.

Useful for:

  • job schedule review
  • incident debugging
  • deployment automation
  • support tickets

Regex Tester

https://www.devtoolstack.in/regex-tester/

Regex work is easier when you can test against realistic sample text.

The Regex Tester helps with:

  • match highlighting
  • flags
  • captured groups
  • sample text testing
  • pattern validation

Regex Explainer

https://www.devtoolstack.in/regex-explainer/

The Regex Explainer helps break a pattern into understandable parts.

This pairs well with the Regex Tester: test behavior first, then explain the structure.

Chmod Calculator

https://www.devtoolstack.in/chmod-calculator/

File permissions can be easy to misread. The Chmod Calculator helps convert permissions into readable numeric and symbolic forms.

Useful for:

  • Linux permission checks
  • deployment scripts
  • server setup
  • debugging access issues

Why this can be better than scattered single-purpose tools

I do not think every developer needs one giant tool for everything. But I do think there is value in a consistent toolbox for repeated debugging tasks.

DevToolStack is built around a few practical advantages:

Consistent UI

Once you use one tool, the others feel familiar. Input, output, copy, download, clear, and feedback patterns stay consistent.

Direct workflow links

Each page links to related tools. For example, URL Parser links naturally to URL Encoder, cURL to Fetch, and JWT Decoder.

Browser-first speed

Most workflows are instant and do not require backend setup from the user.

No login-first experience

You can open a page and use the tool immediately.

Copy and download actions

Many tools include copy/download output so the result can move into tickets, docs, tests, or code review notes.

Guide content for learning

DevToolStack also includes guide pages for important tools, so the site is not only a utility hub but also a learning/reference resource.

Guides start here:

https://www.devtoolstack.in/#guides

When I use DevToolStack personally

I use it most when I am moving through small debugging steps:

  • checking if a redirect rule is wrong
  • formatting a payload from logs
  • decoding a token expiry
  • converting a timestamp from an incident
  • cleaning SQL before review
  • parsing a URL from a callback failure
  • testing a regex before using it in code
  • converting cURL examples into browser fetch code

None of these tasks are huge by themselves. But removing friction from them makes the actual debugging work smoother.

Try it

Homepage:

https://www.devtoolstack.in/

If you want a quick starting path, try these:

I am continuing to improve DevToolStack with more tools, richer examples, and better guide content. If you have a small developer workflow that you repeat often, I would love to hear what tool should be added next.

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