How to use every File2fix tool.

Corrupted ZIP Safe Recovery

Best-effort recovery of ZIP entries the server can read, with bounded extraction and no guarantee for severe corruption.

ZIP Dependency Analyzer

Inventory composer.json, package.json, and requirements.txt manifests from a bounded ZIP without running package managers or making network requests.

ZIP Virus & Malware Scan

Scan readable ZIP entries for configured malware and webshell indicators without executing uploaded code; this is not a full antivirus verdict.

Large ZIP Preview (without extract)

Preview safe metadata for ZIP archives up to 50 MiB and 5,000 entries without extracting their contents.

Project Structure Organizer

Reorganize a validated project ZIP according to an explicit CSV, JSON, or folder-tree map and return a reviewable ZIP without executing uploaded code.

ZIP File Timestamp Timeline (planned)

A single ZIP cannot prove file change history; a version-aware history workflow is planned.

ZIP Diff Comparator (Old vs New)

Compare two readable ZIP archives at file level using safe paths, sizes, and CRC metadata; it does not produce line-by-line code diffs.

ZIP Encryption Strength Checker

Inspect a password-protected ZIP to see whether it uses weak legacy ZipCrypto encryption or modern AES-256, with plain-English recommendations. No passwords are guessed or cracked.

Multi-ZIP Batch Processor

Merge up to 20 readable ZIP archives into one organized ZIP with sanitized archive-name folders; no cleaning, resizing, or renaming is performed.

Incremental ZIP Backup Tool

Compare two readable ZIP archives by path, size, and CRC, then create a bounded patch containing added or modified files. Keep the base archive for restore.

ZIP Integrity Validator

Open a ZIP with consistency checks and read its regular entries to verify archive readability and decompression integrity; it does not calculate an external checksum.

ZIP Splitter

Split a readable ZIP into ordered binary parts of 5–50 MiB for transfer; reassemble the parts before opening the archive.

ZIP Merger

Merge two to eight ZIP archives into one while preserving same-path files with safe archive suffixes instead of overwriting them.

ZIP Size Optimizer

Repack a readable ZIP with bounded extraction and DEFLATE compression; the result may be smaller or larger depending on its contents.

ZIP Central Directory Repair (planned)

A safe central-directory recovery workflow is planned; no simulated output is offered.

⇄ File Converters

25 guides

TAR/GZ ⇄ ZIP Converter

Convert ZIP to TAR.GZ or TAR/TAR.GZ/TGZ to ZIP within bounded limits; 7Z and RAR are not supported.

CSV Delimiter & Encoding Fixer

Auto-detect the real delimiter and character encoding of a messy CSV/TSV file and re-emit it as clean, UTF-8, comma-delimited CSV.

Batch Converter (CSV/JSON/XML)

Convert bounded CSV, JSON, or XML uploads into selected text formats; inspect the output because nested data and schemas may need manual mapping.

Bulk Image Resize & Optimize

Resize and re-encode supported JPEG, PNG, and WebP uploads with bounded GD processing, then return a reviewable ZIP.

File Encoding Converter

Convert selected text files in a bounded ZIP to a chosen encoding when the available detector can read them; binary files are left unchanged.

Line Ending Normalizer (CRLF/LF/CR)

Normalize line endings in bounded pasted text or supported uploaded files; review mixed or binary content before deployment.

CSV to SQL Converter

Convert a bounded CSV input into INSERT statements with escaped values; review table and column assumptions before running SQL.

JSON to PHP Array Converter

Convert valid JSON into readable PHP array syntax; input is not executed.

Markdown to HTML Converter

Render a small basic Markdown subset with escaped output and HTTP(S)-only links; this is not a full CommonMark renderer.

Smart JSON-to-CSV Flattener

Convert deeply nested JSON objects into flat CSV columns. Ideal for preparing API data for Excel analysis.

Markdown Table Master

Convert Excel, CSV, or Google Sheets data into perfectly formatted Markdown tables for your documentation.

WebP to PNG Converter

Convert WebP images back to PNG format instantly in browser.

Local Data, Text, and Image Converter

Convert JSON, JSON Lines, CSV, XML, Markdown, HTML, plain text, PNG, JPEG, and WebP locally in your browser. Files are not uploaded.

Favicon Generator

Turn an uploaded image into a favicon.ico plus common PNG sizes and the matching HTML link tags, using bounded server-side GD resizing.

Word to PDF Converter (planned)

Convert DOCX to PDF; evaluating a pure-PHP renderer vs. a metered external API before committing to formatting-accuracy claims.

PDF to Word Converter (planned)

Convert PDF to an editable DOCX; layout-faithful extraction from arbitrary PDFs needs a proper OCR/reflow engine, not a naive text dump.

Excel to PDF Converter (planned)

Render XLSX sheets to paginated PDF; print-area and page-break handling need a real spreadsheet-rendering engine.

PDF to Excel Converter (planned)

Extract tabular data from PDF into XLSX; reliable table detection on scanned or irregular PDFs is the hard part still being scoped.

PowerPoint to PDF Converter (planned)

Render PPTX slides to PDF; needs the same rendering engine decision as the other Office conversions above.

PDF to PowerPoint Converter (planned)

Rebuild PDF pages as editable PPTX slides; planned once the underlying PDF-rendering pipeline is in place.

Image to PDF Converter (planned)

Combine one or more JPEG/PNG/WebP images into a single PDF; a straightforward build once bundled with the PDF pipeline below.

PDF to JPG/PNG Converter (planned)

Rasterize PDF pages to JPEG or PNG; needs Imagick/Ghostscript availability confirmed on this host first.

Merge PDF Files (planned)

Combine multiple PDFs into one in a chosen order; a bounded, safe merge workflow is planned.

Split PDF Files (planned)

Split a PDF into individual pages or custom ranges; planned alongside the merge tool above.

Compress PDF (planned)

Reduce PDF file size by re-encoding embedded images and stripping redundant data; needs Ghostscript availability confirmed on this host first.

⚠️ Advanced Error & Debugging

19 guides

Full PHP Error Stack Analyzer

Deconstruct complex PHP error stacks to find the exact line and file causing the crash. Support for Laravel, Symfony, and WordPress.

Fatal Error Root Cause Finder

Rule-based analysis of common PHP fatal errors, with transparent causes and suggested fixes.

HTTP Error Fix Suggestions (planned)

A complete error-specific troubleshooting workflow is not enabled.

Missing Function / Class Detector

Scan your files to find calls to functions or classes that are not defined in your current project scope.

Deprecated PHP Function Scanner

Find outdated PHP functions that will break in newer PHP versions (8.0+). Get instant modern alternatives.

Server Log Correlation Tool

Correlate recognizable Apache/PHP timestamps across small uploaded logs to surface nearby requests; this heuristic cannot prove causation.

Memory Limit & Timeout Analyzer

Identify scripts that are hitting memory limits or execution time thresholds.

Composer Dependency Error Guide

Interpret common Composer manifest and dependency errors and suggest safe next checks; it does not run Composer or rewrite your dependency graph.

Broken Include Chain Visualizer

Visualize the web of includes/requires to find where a broken path is breaking your site.

.env / dotenv Validator

Check your environment files for syntax errors, missing variables, or exposed secrets.

Nginx Config Validator

Verify Nginx server blocks and location rules for syntax errors before reloading your server.

Apache .htaccess Validator

Safe testing for redirects, rewrites, and authentication rules in Apache .htaccess files.

Database Connection String Tester (planned)

Live database connection testing is not enabled; no connection is attempted and no simulated result is shown.

CORS / Mixed Content Checker

Find HTTPS mixed-content warnings and CORS policy errors that block your API calls.

PHP Extension Dependency Checker

Check if your server has all the required PHP extensions (mbstring, gd, curl, etc.) installed.

Cron Job Failure Diagnostic

Paste cron output or an email body and get every matching failure signature explained in plain English, with a concrete fix.

WordPress debug.log Analyzer

Parse a WordPress debug.log and group every notice/warning/fatal error by severity and by which plugin or theme caused it.

Unix Timestamp Converter

Convert Unix timestamps and dates using the browser clock and explicit timezone controls.

Slow Query Log Visualizer

Parse supported slow-query log lines into a bounded summary; it does not execute or optimize queries.

🧹 Smart Code Repair

41 guides

Code Cleaner (PHP / JS / CSS)

Apply deterministic formatting and small syntax-safe cleanup steps to uploaded PHP, JavaScript, or CSS. This is not an AI refactor.

Broken JSON Auto-Repair

Attempt conservative repairs for common JSON punctuation, quote, and bracket mistakes; always validate the result and keep the original.

SQL Auto-Fix Engine

Apply conservative formatting and selected typo fixes to pasted SQL text; it does not parse or validate every MySQL, PostgreSQL, or SQLite dialect.

PHP Compatibility Auto-Rewrite

Apply a small heuristic set of PHP compatibility rewrites and return a review copy; it is not an automatic migration or runtime compatibility proof.

Legacy PHP to PHP 8 Converter

Apply limited heuristic rewrites to legacy PHP text and return a PHP 8.2 review copy; it does not reliably add union types or constructor promotion and must be tested.

Minified Code Formatter

Add basic line breaks and indentation to minified-looking text; this does not reverse obfuscation or recover original names.

Dead Code Detection Tool

Report simple unused-variable patterns in pasted code; it does not remove code or prove that a symbol is dead across a project.

Unsafe Function Review Copy

Rename selected dangerous function calls in a review copy; it cannot infer a secure replacement and may break behavior, so test manually.

Code Smell Analyzer

Report selected code-smell heuristics such as long lines or repeated patterns; it does not calculate complete architecture or cyclomatic complexity.

XML Validator & Formatter

Parse XML with external entity loading disabled, report parser errors, and format readable XML; XSD validation is not included.

YAML Validator & Formatter

Check common YAML structure and indentation patterns with the available parser or a conservative fallback; it is not a Kubernetes or Compose validator.

INI File Validator

Parse a bounded INI-style upload and report syntax or risky settings; it does not edit or validate every php.ini or my.cnf dialect.

HTML Validator & Auto-Fix

Repair unclosed tags, missing attributes, and invalid nesting in your HTML markup.

CSS Minifier / Beautifier

Compress your CSS for production or beautify it for easier debugging and development.

RegEx Tester & Explainer

Test your regular expressions in real-time and get a detailed breakdown of how each part of the pattern works.

Base64 / URL Encode-Decode

Safely encode and decode strings for URLs and binary data handling.

Markdown Link & Image Checker

Scan Markdown for broken, empty, or malformed links and images, including missing alt text and unsafe relative paths.

Code Snippet Manager

Keep small snippets in the current account workspace; do not store secrets, and delete snippets you no longer need.

AI Unit Test Generator (planned)

AI test generation is not enabled; no placeholder tests are presented as production output.

DocBlock Generator

Add deterministic PHP-style DocBlocks to recognized declarations; review generated comments because no AI service or semantic analysis is used.

Critical CSS Generator (planned)

Critical CSS extraction is not available until a real page fetch and render pipeline is implemented.

JSON Diff Checker

Compare two JSON objects side-by-side to find added, removed, or modified keys.

SQL Formatter & Beautifier

Apply a small, heuristic SQL layout pass for readability; this is formatting only and does not validate queries or guarantee dialect correctness.

Lorem Ipsum Generator (Rich Text)

Generate placeholder text (Lorem Ipsum) with optional HTML tags for your design mockups and prototypes.

CSS Triangle Generator

Visually generate CSS code for arrows and triangles.

Case Converter

Convert text between Uppercase, Lowercase, camelCase, snake_case, and kebab-case instantly.

Word & Character Counter

Count words, characters, sentences, and paragraphs in your text in real-time.

Git Conflict Visualizer (planned)

A real conflict parser and selectable resolution output are not enabled.

Log File AI Summarizer (planned)

AI log summarization is not enabled; use the deterministic log analyzers instead.

Regex Explainer

Explain common regular-expression tokens using a heuristic parser; unusual PCRE features may be described incompletely.

Visual SQL Query Builder

Build a basic SELECT query from selected tables, columns, and conditions; review identifiers and dialect assumptions before executing it.

Docker Compose Visualizer (planned)

A real Compose parser and dependency graph are planned; no hard-coded graph is shown.

Visual .htaccess Generator

Generate complex Apache .htaccess configuration rules for redirects, security, and caching with simple toggles.

Smooth Shadow Generator

Create beautiful, layered, non-flat CSS box-shadows that look smoother and improved compared to standard single-layer shadows.

Chmod Permissions Visualizer

Visual grid to calculate Linux file permissions in both octal (755) and symbolic (-rwxr-xr-x) formats.

Database Schema Visualizer (planned)

A complete SQL schema parser and ER diagram are not enabled.

Visual Cron Job Scheduler

Generate Crontab syntax (e.g., "Every Monday at 9am") visually.

Curl-to-Code Converter

Convert raw cURL commands into clean, ready-to-use code snippets for PHP, Python, and Node.js.

IPv4 Subnet Calculator (planned)

A validated CIDR calculator is planned; no inaccurate demo result is shown.

Text Difference Checker

Compare two text blocks side-by-side to find added, removed, or modified lines.

JSON Schema Validator

Validate JSON data against a JSON Schema (subset of Draft 7) and list every failing path; it does not cover every advanced schema keyword.

🔁 Bulk & Automation

14 guides

Bulk ZIP Find & Replace (100+ files)

Apply a literal find-and-replace to selected text files in a bounded ZIP sandbox and return a reviewable archive; it is not a whole-site migration engine.

Scheduled File Scans (planned)

Background scan workers and user-scoped schedules are not enabled.

Auto ZIP Repair Cron Jobs (planned)

Server-directory monitoring requires a separately authenticated worker and is not exposed here.

Folder-Level Replace Engine

Find and replace literal text in selected file extensions inside a bounded ZIP sandbox, with preview before creating a new ZIP.

Project-Wide Rename Tool

Preview and apply literal filename-fragment replacements inside a bounded ZIP copy; file contents are not rewritten.

Auto Cleanup Unused Files (planned)

Server filesystem cleanup is not exposed from the public web app.

Recurring Backup & Restore (planned)

Server-directory backups are not available from the public web app.

API File Processing (planned)

The public API endpoint and scoped key management are not enabled.

Bulk File Rename (Regex)

Preview or apply a validated regular-expression filename rename inside a bounded ZIP sandbox; file contents are unchanged.

Duplicate File Finder (by Hash)

Find byte-identical non-empty files in a bounded ZIP using hashes and optionally return a deduplicated copy; review which file is kept.

Empty Folder / Zero-Byte Cleaner

Identify empty directories and zero-byte files in a bounded ZIP and optionally return a cleaned copy; the upload is never changed in place.

Bulk Image Alt-Text Injector

Upload a ZIP of HTML files and auto-fill missing image alt attributes with a humanized version of the filename.

Bulk EXIF/GPS Metadata Stripper

Strip EXIF and GPS metadata from every JPEG/PNG in a ZIP archive by re-encoding each image.

Cron Expression Generator

Create and explain complex cron schedules for your server tasks.

🔐 Security & Forensics

23 guides

Exposed Secret Scanner

Scan bounded text files or ZIP entries for selected credential patterns and mask findings; this is heuristic and not proof that a project is clean.

Malware Signature Scanner

Scan bounded PHP, HTML, JavaScript, or ZIP text for configured suspicious signatures without executing code; this is not antivirus protection.

Backdoor Behavior Analyzer

Look for selected webshell, obfuscation, and dynamic-execution indicators in bounded source text; findings require expert review and are not a malware verdict.

Suspicious File Timeline

List file modification timestamps from a bounded ZIP; archive timestamps are clues and cannot prove when an attack occurred.

File Integrity Monitoring (Hash Check)

Create a bounded hash baseline for files in a ZIP; save and compare the JSON yourself because no ongoing monitoring or alert service is provided.

Hash Change Alerts (MD5/SHA1)

Compare supplied file hashes or a saved baseline for changes; this page does not run a background alert service.

Obfuscated Code Review Helper

Decode or format selected obfuscated text for manual inspection without executing it; output is not a safe deobfuscation or malware verdict.

Security Risk Score Calculator

Apply a small set of heuristic checks to a bounded ZIP project and show a review score; it is not a penetration test or compliance certification.

Cleanup Recommendation Generator

Turn selected scan observations into review notes; it does not delete files or modify a project automatically.

File Permission Recommender

Suggest least-privilege permissions from supplied paths or archive metadata; it does not change server filesystem permissions.

Security Headers Checker

Fetch one public URL with bounded SSRF-safe checks and report selected response headers; it does not modify the site or prove full security.

SSL Certificate Checker

Inspect the certificate presented by one public HTTPS host with bounded network checks; it is not a full TLS penetration test.

Sensitive Data Redactor

Mask selected credential and personal-data patterns in bounded text; review for missed formats before sharing the redacted copy.

CSV Formula-Injection Sanitizer

Defensively neutralize cells that could execute as formulas when your CSV is opened in Excel or Sheets.

Subresource Integrity (SRI) Hash Generator

Generate SHA-256, SHA-384, and SHA-512 SRI hashes from exact asset bytes; it does not host the asset or configure your site.

Secure Password Generator

Generate random password candidates in your browser; do not reuse a displayed password or store it in an unsafe place.

Hash Generator (MD5/SHA)

Calculate selected hashes for pasted text in the browser; hashes do not encrypt or prove file authenticity by themselves.

JWT Debugger

Decode and inspect JSON Web Tokens (JWT) headers and payloads without verifying the signature. Useful for debugging auth issues.

.htpasswd Generator

Create secure password entries for Apache basic authentication.

JWT Security Scanner

Decode JWTs and check for critical security flaws (None alg, expired).

SSL/TLS Certificate Decoder

Decode PEM/CSR files to view expiry, SANs, and issuer details.

PHP Webshell Detector

Scan a PHP file or ZIP project for common webshell indicators and suspicious execution patterns without running the uploaded code.

Password Strength Analyzer

Estimate password strength from length, character variety, and common patterns entirely in your browser; nothing you type is sent to the server.

🌐 SEO & Website Health

20 guides

Robots.txt Generator

Generate a basic robots.txt from user-agent, allow, disallow, and sitemap lines; review paths and crawler behavior before publishing.

Single-Page SEO Audit

Fetch one public page with SSRF-safe limits and check its title, meta description, viewport, canonical, H1, image alt coverage, HTTPS, and response time.

Broken Link Status Checker

Check up to 50 public URLs, a small sitemap, or same-host links from one page; reports status codes but does not rewrite site files.

Canonical Tag Inspector

Fetch one public page and report missing, multiple, or mismatched canonical tags; it does not prove duplicate-content issues across a site.

Redirect Chain Checker

Follow a bounded public URL redirect chain with SSRF-safe checks and report the hops; it does not change your server configuration.

Sitemap URL Status Checker

Fetch a public sitemap through SSRF-safe limits and check the first 20 listed URLs for HTTP status codes. It does not discover orphaned pages.

Robots.txt Conflict Resolver

Compare robots.txt rules with a URL or resource path and explain likely allow/disallow conflicts; it does not edit your site.

Meta Duplicate Inspector

Fetch one public page and report duplicate meta tags or obvious title/Open Graph conflicts; it does not edit pages or compare a whole site.

SEO Health Score Dashboard (planned)

A user-scoped scan history dashboard is planned; global scan history is not exposed.

Scheduled SEO Monitoring (planned)

Background monitoring and alert delivery are not enabled.

Schema.org / JSON-LD Parser

Parse JSON-LD blocks and report basic JSON or structure problems; it is not Google Rich Results validation and cannot guarantee eligibility.

Image Alt & Filename Checker

Inspect a fetched page for missing image alt text and generic filenames; it checks a bounded page, not your whole site or image ranking.

Heading Hierarchy Checker

Inspect one fetched page for heading order, missing H1, and skipped levels; recommendations are heuristic and do not predict rankings.

Redirect Loop Detector

Follow a bounded public URL redirect chain and report repeated or excessive hops; it does not change redirect rules.

Broken Image Link Scanner

Crawl a page for every image, resolve relative URLs, and check each one for broken links or redirects.

hreflang Tag Inspector

Inspect hreflang tags on one fetched page for language-code, duplicate, and self-reference issues; it does not verify reciprocal tags site-wide.

Social Media Meta Preview

Preview how your link will look on Facebook, Twitter, and LinkedIn.

Global DNS Propagation Checker (planned)

Multi-region DNS checks are not available; no single-server lookup is mislabeled as global propagation.

Social Image (OG) Generator

Generate a simple 2:1 Open Graph-style PNG preview in the browser; add your own logo, crop, and final-size checks before publishing.

Bulk Meta-Tag Auditor

Fetch a bounded list of public URLs and report missing or duplicate title, meta description, canonical, and Open Graph tags.

📊 Reporting & Exports

10 guides

Downloadable Fix Reports (planned)

Report generation and download delivery are being rebuilt; no simulated file link is offered.

ZIP Repair Audit Logs (planned)

A durable user-scoped audit log is planned; this page does not fabricate history.

Change History Viewer (planned)

Repository history visualization is not enabled.

Before / After File Diff Reports (planned)

Upload-backed diff report delivery is not enabled yet.

Compliance Reports (planned)

Compliance checks need real rule sets and evidence handling before launch.

Shareable Fix Links

Upload a result up to 50 MiB and create a forced-download link that expires after 24 hours; anyone with the link can access it.

White-Label Reports (planned)

User-scoped branding and report export storage are not enabled yet.

Client-Ready Exports (planned)

Project export packaging is not available from the public web app.

Email Summary Scheduler (planned)

Email delivery and encrypted SMTP settings are not enabled.

URL Response Time Report

Time up to 20 public URLs with SSRF-safe cURL checks and return a sorted report with a CSV export.

📂 Migration & Hosting

13 guides

PHP Version Compatibility Report

Scan uploaded PHP text for configured version-compatibility indicators and review the reported lines; this is not a complete runtime test.

WordPress Migration Readiness

Check a public WordPress site for visible WordPress markers, HTTPS, and REST API availability; this is a readiness hint, not a migration guarantee.

Hosting Requirement Checker

Show basic PHP extension, writable-storage, and runtime checks for the current File2fix host; it does not certify another host.

SQL Dump Search & Replace

Perform a bounded literal search and replace in pasted SQL dump text; it does not connect to or modify a live database.

Plugin Compatibility Heuristic Checker

Scan supplied plugin text or metadata for selected compatibility indicators; it is not a complete WordPress or runtime compatibility test.

Server Environment Info (planned)

Detailed server fingerprinting and phpinfo output are not exposed from the public tool catalog.

PHP Config Analyzer (planned)

Detailed php.ini and server fingerprint reports are not exposed publicly; an authenticated scoped diagnostics workflow is planned.

Serialized Data Inspector

Decode and re-encode supported PHP serialized values with bounded input; validate the result and keep a backup before database use.

Database Table Prefix Changer

Rewrite a MySQL dump's table prefix (e.g. wp_ to wp2024_) safely, touching only backtick-quoted identifiers.

Docker Setup Generator

Generate a reviewable Dockerfile or Compose starting point from selected options; it does not build or test the image.

GitHub Actions Workflow Builder

Generate a reviewable GitHub Actions YAML starting point from selected options; it does not run the workflow.

Database Anonymizer

Replace selected values in bounded SQL or CSV text with deterministic or random placeholders; inspect the output before sharing it.

.gitignore Generator

Build a merged .gitignore file from selected language, framework, and editor/OS templates.

♿ Accessibility & Content

4 guides