21+ free tools · No signup ·

Developer Tools
That Just Work

Format JSON, run SQL queries, write Java, debug regex — all free, all instant, all in your browser. No login, no waiting, no nonsense.

Instant, no setup

Every tool runs in your browser. Nothing to install, no account needed.

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Private by default

Your code and data never leave your browser for client-side tools.

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Works everywhere

Desktop, tablet, mobile — the same experience on every device.

What we build

Practical tools for real developer workflows

CodeDevForge is not a link directory. Each tool solves a specific problem — comparing configs, exploring JSON paths, visualizing Java streams, validating schemas, or converting API formats — with guides and FAQs on every page so you know exactly when and how to use it.

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JSON & data tools

Path finder, schema validator, format converters, and diff utilities for API payloads and config files.

JSON Path Finder →
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Config & DevOps

Diff .env and YAML, split Spring profiles, generate Docker Compose and Kubernetes snippets with security hints.

Config Studio →

Java & Spring Boot

Stream visualizer, entity generators, migration assistant, and annotation helpers for everyday backend work.

Streams Visualizer →
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Everyday utilities

Diff checker, cURL converter, string utils, HTTP status reference, and minifiers — fast and browser-based.

Diff Checker →

Privacy-first: client-side processing where possible · No signup · Free to use

Learn more about CodeDevForge →

All tools (21)

Full tools page →
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JSON Path Finder
Click any node to get its JSONPath expression
New 86 uses
ESC
String Escape & Unescape
Escape or unescape strings for JSON, Java, JavaScript, URL, HTML, XML, Unicode \u and Base64 — live, in your browser.
New 50 uses
Python Compiler
Write and run Python code online — see stdout, stderr, and errors instantly on the server.
New 68 uses
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UUID Generator
Generate v1/v3/v4/v5/v6/v7 UUIDs, bulk export, validate, decode timestamps, namespace hashing — client-side.
New 48 uses
STR
String Utils
Case converter, find & replace, trim, sort lines, deduplicate, slugify, padding and character stats — all client-side.
New 46 uses
#️⃣
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text
New 56 uses
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Python Formatter
Full-page Python formatter with PEP 8 style, syntax validator, import sorting, diff view, and download — in your browser.
New 39 uses
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HTML Playground
Write HTML, CSS and JS — see live preview instantly
62 uses
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Regex Library
Browse common regex patterns by category — email, URL, UUID, passwords, and more.
New 100 uses
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Base64 Encode / Decode
Encode and decode Base64 strings and files instantly
New 48 uses
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Diff Checker
Compare two blocks of text or code side-by-side. See additions, removals, and changes highlighted instantly — free, private, in your browser.
44 uses
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Css Loaders
Interactive 40+ Css loaders and framework code generators
56 uses
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Code Minifier tool
Code Minifier tool - HTML, CSS, JS, TS, Python, Java, Ruby, PHP, and Rust with rich extra features
50 uses
VTL
Velocity Code Formatter
Format Apache Velocity / VTL templates with directive indentation, spacing cleanup, diagnostics, copy, and download.
New 68 uses
📊
Barcode Calculator
Bulk calculate and validate GTIN-8/12/13/14 check digits — GS1 mod-10, up to 1M rows.
New 140 uses
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Barcode Repair Tool
Recover smudged GTINs using ? or * wildcards — brute-force valid check digits.
New 120 uses
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Barcode Identifier
Identify GTIN, ISBN, GS1-128, Digital Link, VIN, IMEI, ASIN from any pasted code.
New 140 uses
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GS1 Digital Link Generator
Convert GTINs to GS1 Digital Link URLs with batch, expiry, and serial qualifiers — bulk mode.
New 104 uses
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GS1-128 Parser
Decode GS1-128 paren or FNC1 barcodes with per-AI breakdown — single and bulk.
New 100 uses
📚
ISBN Converter
Convert ISBN-10 ↔ ISBN-13 with check digit validation and hyphenation.
New 106 uses
🛡️
JSON to Zod
Generate Zod validation schemas from JSON.
New 196 uses