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I Hate CSV Data Toolkit: 64+ CSV & Excel Tools

Instantly clean, convert, analyze, and secure your spreadsheet data. No downloads, no uploads—works worldwide, GDPR compliant.

Try Tools FreeData Cleaning Guide

Here at I Hate CSV, we believe working with data should be fast, easy, and secure. Our growing collection of 64+ free online tools empowers you to clean, convert, analyze, and visualize your CSV, Excel, and JSON data—all without leaving your browser. Whether you're a data analyst, marketer, researcher, or just someone who hates dealing with broken spreadsheets, our toolkit is designed to save you time and headaches. Explore our comprehensive guide below to see how each tool can help you master your data and unlock insights in seconds.

We cover everything from basic data cleaning and format conversion to advanced AI-powered analysis, anonymizer, forecasting and scenario generations. Plus, all our tools are built with privacy in mind—your data never leaves your device. Say goodbye to clunky software and hello to the future of data processing with I Hate CSV.

Browse All Tools by Category

Conversion & Export

Format Nightmare Fixer

Fix the mess when your CSV export breaks. Convert between broken Excel files (XLS, XLSX), malformed JSON, corrupted CSV, and busted TSV formats because nothing ever works the first time. Handle the encoding disasters and delimiter chaos that plague every data export.

Available: en, it, es, fr, de

CSV to XLSX Rescue

Stop Excel from destroying your CSV files. Convert broken CSV to XLSX while fixing the encoding disasters, formatting nightmares, and data type failures that make Excel unusable. Because opening CSV in Excel always breaks everything.

Available: en, it, es, fr, de

PDF Prison Break

Free your data trapped in PDF hell. Extract tables from locked PDF documents because someone thought PDFs were a good format for data sharing.

Available: en, it, es, fr, de

JSON Export Disaster

Convert flat CSV rows into JSON when your API demands it but your data is a mess.

Available: en, it, es, fr, de

Tab Hell to Comma Hell

Convert Tab-Separated nightmares to Comma-Separated disasters when systems can't agree on delimiters. Fix broken TSV files that fail to import anywhere because tabs are invisible and break everything.

Available: en, it, es, fr, de

Comma Hell to Tab Hell

Convert comma disasters to tab disasters when systems demand the wrong delimiter. Export data to systems that inexplicably require tabs, handle scientific data that breaks with commas, or deal with bioinformatics tools that hate CSV.

Available: en, it, es, fr, de

XLSM to CSV

Convert Excel Macro-Enabled Workbook (XLSM) files to CSV format. Extract data from XLSM spreadsheets while preserving data integrity. Perfect for processing macro-enabled Excel files, automating data pipelines, and converting complex workbooks to simple CSV format.

Available: en, it, es, fr, de, pt

CSV to XLSM

Convert CSV files to Excel Macro-Enabled Workbook (XLSM) format. Create XLSM files from CSV data for use with VBA macros and automated Excel workflows. Secure, fast, and browser-based conversion without uploading to external servers.

Available: en, it, es, fr, de, pt

Cleaning & Preparation

Structural Disaster Repair

Emergency surgery for CSV files that are completely broken with mangled encoding and catastrophic structural failure.

Available: en, it, es, fr, de

Quick Mess Cleanup

Quick fix for the usual CSV disasters with one painful click.

Available: en, it, es, fr, de

Invisible Garbage Remover

Remove invisible zero-width garbage and non-breaking spaces that silently destroy your code and break everything.

cleanhiddenbrokeninvisible
Available: en, it, es, fr, de

File Consolidation Hell

Combine dozens of inconsistent CSV files because someone split your data into a nightmare of incompatible pieces.

Available: en, it, es, fr, de

Data Extraction Hell

Query your broken CSV like a database because Excel filters are useless for real work.

Available: en, it, es, fr, de

Basic Mess Removal

Remove whitespace disasters, empty row nightmares, and duplicate hell.

Available: en, it, es, fr, de

Empty Cell Disaster

Fix missing values that break imports using interpolation because null values destroy everything.

Available: en, it, es, fr, de

Header Nightmare Fixer

Bulk rename headers with spaces and special characters to snake_case because databases hate human-readable names.

Available: en, it, es, fr, de

Duplicate Hell Fixer

Remove duplicates that break everything based on specific columns because your data is full of redundant garbage.

Available: en, it, es, fr, de

Almost-Duplicate Nightmare

Find and merge nearly-identical records that differ by typos (e.g. "Jon Doe" vs "John Doe") because data entry is always inconsistent.

Available: en, it, es, fr, de

Data Quality Disaster Report

Audit your broken dataset to see how many nulls, errors, and type mismatches are destroying your analysis.

Available: en, it, es, fr, de

Date Format Hell

Standardize date chaos into ISO-8601 because dates are always in 47 different formats.

Available: en, it, es, fr, de

Unique Value Hell

Filter and export only unique values from a list full of duplicates.

Available: en, it, es, fr, de

Analysis & Visualization

Broken Data Visualizer

Create bar, line, and scatter charts from your broken CSV data because visualizing disasters is still useful.

Available: en, it, es, fr, de

Excel Chart Extractor

Extract embedded charts from Excel files and recreate them as interactive visualizations.

chartsexcelvisualizationextraction
Available: en, it, es, fr, de, pt

Pivot Table Nightmare

Summarize broken data like in Excel but without Excel crashing every 5 minutes.

Available: en, it, es, fr, de

Statistical Nightmare

Calculate Mean, Median, Mode, and Standard Deviation on your disaster data.

Available: en, it, es, fr, de

Damage Assessment Report

Generate a full report showing how broken your data quality is with one painful click.

Available: en, it, es, fr, de

Grouping Hell

Group broken rows by category and calculate sums or averages when nothing adds up correctly.

Available: en, it, es, fr, de

SQL on Broken CSV

Run SQL queries directly on your broken CSV files because flat files suck for analysis.

Available: en, it, es, fr, de

Correlation Disaster

Find relationships between variables using Pearson Correlation even when your data is a mess.

Available: en, it, es, fr, de

Value Counting Hell

Count frequency of unique values in a broken column.

Available: en, it, es, fr, de

File Comparison Nightmare

Find differences (added/removed rows) between two CSV disasters because versions never match.

Available: en, it, es, fr, de

Type Detection Disaster

Try to infer data types and structure for SQL CREATE TABLE when everything is stored as text.

Available: en, it, es, fr, de

Text Data Hell

Analyze word frequency and text length in your broken text columns.

Available: en, it, es, fr, de

Transformation & Logic

Type Coercion Hell

Force broken columns to Numbers, Dates, or Text because type detection always fails.

Available: en, it, es, fr, de

File Size Nightmare

Compress bloated CSV and XLSX files because they're always too large to email.

Available: en, it, es, fr, de

Formula Hell

Apply broken math formulas (A + B) to create new columns that might work.

Available: en, it, es, fr, de

Join Failure Disaster

Attempt SQL-style joins or VLOOKUP between two incompatible files when keys never match.

Available: en, it, es, fr, de

Approximate Match Hell

Join broken tables even when spelling never matches because data entry is always inconsistent.

Available: en, it, es, fr, de

Moving Averages

Smooth out volatile data using rolling windows.

Available: en, it, es, fr, de, pt

Email Scraping Disaster

Scrape email addresses from text files or broken CSV columns.

Available: en, it, es, fr, de

Wide Format Hell

Transform painful wide data (months as columns) into long format because Excel reports are always wrong.

Available: en, it, es, fr, de

Date Splitting Hell

Extract Day, Month, Year, and Weekday from broken dates that should have been separate columns.

Available: en, it, es, fr, de

Text Feature Hell

Count words, characters, and extract patterns from messy text columns.

Available: en, it, es, fr, de

Regex Extraction Hell

Use painful Regular Expressions to extract complex patterns because nothing is ever simple.

Available: en, it, es, fr, de

Category Mapping Hell

Rename or group inconsistent values (e.g., US vs USA vs U.S.A.) because data is never standardized.

Available: en, it, es, fr, de

Validation Hell

Check if broken data meets specific logical rules (spoiler: it never does).

Available: en, it, es, fr, de

AI & Machine Learning

AI Interrogation

Ask AI questions about your broken data and hope it understands the chaos.

Available: en, it, es, fr, de

AI Transform

Transform and edit your CSV using natural language commands. AI converts your instructions into code and applies changes instantly.

ainatural-languagetransformationeditor
Available: en, it, es, fr, de, pt

Prediction Nightmare

Attempt to forecast future disasters using broken historical data.

Available: en, it, es, fr, de

Clustering Disaster

Automatically group similar broken data points that shouldn't be together.

Available: en, it, es, fr, de

Regression Nightmare

Model the relationship between two variables that don't actually relate.

Available: en, it, es, fr, de

Outlier Detection Hell

Find broken data points that don't fit the pattern using Z-Score because outliers break everything.

Available: en, it, es, fr, de

Outlier Damage Control

Cap, remove, or flag anomalies that destroy your dataset statistics.

Available: en, it, es, fr, de

Normalization Hell

Scale broken numbers to 0-1 range or standardize them when nothing is standardized.

Available: en, it, es, fr, de

One-Hot Encoding Hell

Convert categorical text disasters into binary numbers for ML because machines hate text.

Available: en, it, es, fr, de

Binning Disaster

Group continuous numbers into arbitrary buckets (e.g. Age groups) because granularity is painful.

Available: en, it, es, fr, de

Moving Average Hell

Smooth out volatile broken data using rolling windows that don't fix anything.

Available: en, it, es, fr, de

Group Imputation Disaster

Fill missing values based on broken group averages because individual values are unknown.

Available: en, it, es, fr, de

Scenario Building Hell

Create "What-if" scenarios by modifying variables that never predict reality.

Available: en, it, es, fr, de

Data Augmentation Hell

Generate synthetic fake data samples to expand tiny broken datasets.

Available: en, it, es, fr, de

Security & Privacy

Privacy Disaster Fixer

Mask PII disasters (names, emails) in your CSV before someone sues you for data leaks.

Available: en, it, es, fr, de

Platforms

Shopify Tools

Complete Shopify toolkit: bulk product editor, multi-store inventory sync, profit calculator, dynamic pricing engine, order anomaly detection, and customer segmentation. Optimize your store operations, prevent overselling, maximize profits, and identify your best customers - all with CSV-based workflows.

ecommerceshopifyamazoninventory
Available: en, it, es, fr, de, pt

Ads Tools

Complete marketing agency toolkit: multi-platform campaign aggregation (Google Ads, Facebook, LinkedIn), ROI calculator per client, white-label report generator, keyword gap analysis, competitor ad tracking, and AI-powered budget allocation optimizer. Manage 10-100 clients efficiently with unified analytics.

marketingagencycampaignsroi
Available: en, it, es, fr, de, pt

HR Tools

Complete HR and recruitment toolkit: resume parser with skill scoring, candidate deduplication using fuzzy matching, salary benchmarking against market rates, diversity & inclusion analytics, interview scheduler optimizer, and automated onboarding checklist generator. Streamline hiring from application to onboarding.

hrrecruitmenthiringresumes
Available: en, it, es, fr, de, pt

Frequently Asked Questions

Are these tools available in my country?

Yes! All tools run in your browser and are accessible globally. No region restrictions.

Is my data secure and private?

Absolutely. All processing happens locally in your browser. No files are uploaded or stored.

Do you support Excel, CSV, TSV, and JSON?

Yes. The toolkit covers all major spreadsheet and data formats, including Excel (.xlsx, .xlsm), CSV, TSV, and JSON.

Can I use these tools on Mac, Windows, Linux?

Yes. The platform is fully cross-device and works on any modern browser, including Chrome, Edge, Firefox, and Safari.

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